Finding the Fourth Proportional to 2,499.60, 3,751.05 and 1,038.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.60 : 3,751.05 = 1,038.75 : x
2. Step 2: Convert to fraction form
   2,499.60/3,751.05 = 1,038.75/x
3. Step 3: Cross multiply
   2,499.60x = 3,751.05 × 1,038.75
4. Step 4: Simplify right side
   2,499.60x = 3,896,403.19
5. Step 5: Solve for x
   x = 3,896,403.19/2,499.60
6. Step 6: Final answer
   x = 1,558.81