Finding the Fourth Proportional to 2,610.88, 3,931.96 and 2,377.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.88 : 3,931.96 = 2,377.60 : x
2. Step 2: Convert to fraction form
   2,610.88/3,931.96 = 2,377.60/x
3. Step 3: Cross multiply
   2,610.88x = 3,931.96 × 2,377.60
4. Step 4: Simplify right side
   2,610.88x = 9,348,628.10
5. Step 5: Solve for x
   x = 9,348,628.10/2,610.88
6. Step 6: Final answer
   x = 3,580.64