Finding the Fourth Proportional to 2,519.55, 3,779.69 and 875.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519.55 : 3,779.69 = 875.66 : x
2. Step 2: Convert to fraction form
   2,519.55/3,779.69 = 875.66/x
3. Step 3: Cross multiply
   2,519.55x = 3,779.69 × 875.66
4. Step 4: Simplify right side
   2,519.55x = 3,309,700.07
5. Step 5: Solve for x
   x = 3,309,700.07/2,519.55
6. Step 6: Final answer
   x = 1,313.61