Finding the Fourth Proportional to 1,068,374.31, 1,603,345.55 and 860,521.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,068,374.31 : 1,603,345.55 = 860,521.83 : x
2. Step 2: Convert to fraction form
   1,068,374.31/1,603,345.55 = 860,521.83/x
3. Step 3: Cross multiply
   1,068,374.31x = 1,603,345.55 × 860,521.83
4. Step 4: Simplify right side
   1,068,374.31x = 1,379,713,842,505.75
5. Step 5: Solve for x
   x = 1,379,713,842,505.75/1,068,374.31
6. Step 6: Final answer
   x = 1,291,414.28