Finding the Fourth Proportional to 1,780,377,520.63, 2,456,897,796.69 and 1,017,412,909.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,780,377,520.63 : 2,456,897,796.69 = 1,017,412,909.51 : x
2. Step 2: Convert to fraction form
   1,780,377,520.63/2,456,897,796.69 = 1,017,412,909.51/x
3. Step 3: Cross multiply
   1,780,377,520.63x = 2,456,897,796.69 × 1,017,412,909.51
4. Step 4: Simplify right side
   1,780,377,520.63x = 2,499,679,535,699,081,216
5. Step 5: Solve for x
   x = 2,499,679,535,699,081,216/1,780,377,520.63
6. Step 6: Final answer
   x = 1,404,016,567.69