Finding the Fourth Proportional to 2,781,379.86, 3,838,121.54 and 1,557,404.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781,379.86 : 3,838,121.54 = 1,557,404.86 : x
2. Step 2: Convert to fraction form
   2,781,379.86/3,838,121.54 = 1,557,404.86/x
3. Step 3: Cross multiply
   2,781,379.86x = 3,838,121.54 × 1,557,404.86
4. Step 4: Simplify right side
   2,781,379.86x = 5,977,509,142,517.58
5. Step 5: Solve for x
   x = 5,977,509,142,517.58/2,781,379.86
6. Step 6: Final answer
   x = 2,149,116.42