Finding the Fourth Proportional to 1,802,418.72, 2,487,300.24 and 986,602.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,802,418.72 : 2,487,300.24 = 986,602.40 : x
2. Step 2: Convert to fraction form
   1,802,418.72/2,487,300.24 = 986,602.40/x
3. Step 3: Cross multiply
   1,802,418.72x = 2,487,300.24 × 986,602.40
4. Step 4: Simplify right side
   1,802,418.72x = 2,453,976,386,304.58
5. Step 5: Solve for x
   x = 2,453,976,386,304.58/1,802,418.72
6. Step 6: Final answer
   x = 1,361,490.73