Finding the Fourth Proportional to 2,781.56, 3,838.56 and 1,539.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781.56 : 3,838.56 = 1,539.56 : x
2. Step 2: Convert to fraction form
   2,781.56/3,838.56 = 1,539.56/x
3. Step 3: Cross multiply
   2,781.56x = 3,838.56 × 1,539.56
4. Step 4: Simplify right side
   2,781.56x = 5,909,693.43
5. Step 5: Solve for x
   x = 5,909,693.43/2,781.56
6. Step 6: Final answer
   x = 2,124.60