Finding the Fourth Proportional to 2,338.12, 3,505.56 and 1,038.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,338.12 : 3,505.56 = 1,038.88 : x
2. Step 2: Convert to fraction form
   2,338.12/3,505.56 = 1,038.88/x
3. Step 3: Cross multiply
   2,338.12x = 3,505.56 × 1,038.88
4. Step 4: Simplify right side
   2,338.12x = 3,641,856.17
5. Step 5: Solve for x
   x = 3,641,856.17/2,338.12
6. Step 6: Final answer
   x = 1,557.60