Finding the Fourth Proportional to 1,499,708.69, 2,069,592.39 and 811,378.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,708.69 : 2,069,592.39 = 811,378.34 : x
2. Step 2: Convert to fraction form
   1,499,708.69/2,069,592.39 = 811,378.34/x
3. Step 3: Cross multiply
   1,499,708.69x = 2,069,592.39 × 811,378.34
4. Step 4: Simplify right side
   1,499,708.69x = 1,679,222,437,874.83
5. Step 5: Solve for x
   x = 1,679,222,437,874.83/1,499,708.69
6. Step 6: Final answer
   x = 1,119,699.08