Finding the Fourth Proportional to 1,620,857.69, 2,429,354.08 and 755,131.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,857.69 : 2,429,354.08 = 755,131.31 : x
2. Step 2: Convert to fraction form
   1,620,857.69/2,429,354.08 = 755,131.31/x
3. Step 3: Cross multiply
   1,620,857.69x = 2,429,354.08 × 755,131.31
4. Step 4: Simplify right side
   1,620,857.69x = 1,834,481,322,543.85
5. Step 5: Solve for x
   x = 1,834,481,322,543.85/1,620,857.69
6. Step 6: Final answer
   x = 1,131,796.66