Finding the Fourth Proportional to 3,333.78, 5,001.84 and 1,025.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,333.78 : 5,001.84 = 1,025.28 : x
2. Step 2: Convert to fraction form
   3,333.78/5,001.84 = 1,025.28/x
3. Step 3: Cross multiply
   3,333.78x = 5,001.84 × 1,025.28
4. Step 4: Simplify right side
   3,333.78x = 5,128,286.52
5. Step 5: Solve for x
   x = 5,128,286.52/3,333.78
6. Step 6: Final answer
   x = 1,538.28