Finding the Fourth Proportional to 1,128,255.08, 1,690,791.27 and 623,043.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128,255.08 : 1,690,791.27 = 623,043.50 : x
2. Step 2: Convert to fraction form
   1,128,255.08/1,690,791.27 = 623,043.50/x
3. Step 3: Cross multiply
   1,128,255.08x = 1,690,791.27 × 623,043.50
4. Step 4: Simplify right side
   1,128,255.08x = 1,053,436,499,839.88
5. Step 5: Solve for x
   x = 1,053,436,499,839.88/1,128,255.08
6. Step 6: Final answer
   x = 933,686.47