Finding the Fourth Proportional to 1,107,179.69, 1,657,002.72 and 680,490.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107,179.69 : 1,657,002.72 = 680,490.52 : x
2. Step 2: Convert to fraction form
   1,107,179.69/1,657,002.72 = 680,490.52/x
3. Step 3: Cross multiply
   1,107,179.69x = 1,657,002.72 × 680,490.52
4. Step 4: Simplify right side
   1,107,179.69x = 1,127,574,640,983.55
5. Step 5: Solve for x
   x = 1,127,574,640,983.55/1,107,179.69
6. Step 6: Final answer
   x = 1,018,420.64