Finding the Fourth Proportional to 2,781.02, 3,837.89 and 1,539.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781.02 : 3,837.89 = 1,539.02 : x
2. Step 2: Convert to fraction form
   2,781.02/3,837.89 = 1,539.02/x
3. Step 3: Cross multiply
   2,781.02x = 3,837.89 × 1,539.02
4. Step 4: Simplify right side
   2,781.02x = 5,906,589.47
5. Step 5: Solve for x
   x = 5,906,589.47/2,781.02
6. Step 6: Final answer
   x = 2,123.89