Finding the Fourth Proportional to 2,610.66, 3,915.90 and 1,050.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.66 : 3,915.90 = 1,050.18 : x
2. Step 2: Convert to fraction form
   2,610.66/3,915.90 = 1,050.18/x
3. Step 3: Cross multiply
   2,610.66x = 3,915.90 × 1,050.18
4. Step 4: Simplify right side
   2,610.66x = 4,112,399.86
5. Step 5: Solve for x
   x = 4,112,399.86/2,610.66
6. Step 6: Final answer
   x = 1,575.23