Finding the Fourth Proportional to 1,761,627.27, 2,431,216.28 and 987,389.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761,627.27 : 2,431,216.28 = 987,389.63 : x
2. Step 2: Convert to fraction form
   1,761,627.27/2,431,216.28 = 987,389.63/x
3. Step 3: Cross multiply
   1,761,627.27x = 2,431,216.28 × 987,389.63
4. Step 4: Simplify right side
   1,761,627.27x = 2,400,557,726,066.15
5. Step 5: Solve for x
   x = 2,400,557,726,066.15/1,761,627.27
6. Step 6: Final answer
   x = 1,362,693.33