Finding the Fourth Proportional to 1,200,731.63, 1,657,022.72 and 656,855.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200,731.63 : 1,657,022.72 = 656,855.73 : x
2. Step 2: Convert to fraction form
   1,200,731.63/1,657,022.72 = 656,855.73/x
3. Step 3: Cross multiply
   1,200,731.63x = 1,657,022.72 × 656,855.73
4. Step 4: Simplify right side
   1,200,731.63x = 1,088,424,868,782.72
5. Step 5: Solve for x
   x = 1,088,424,868,782.72/1,200,731.63
6. Step 6: Final answer
   x = 906,468.06