Finding the Fourth Proportional to 3,066.55, 4,599.05 and 875.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,066.55 : 4,599.05 = 875.30 : x
2. Step 2: Convert to fraction form
   3,066.55/4,599.05 = 875.30/x
3. Step 3: Cross multiply
   3,066.55x = 4,599.05 × 875.30
4. Step 4: Simplify right side
   3,066.55x = 4,025,525.47
5. Step 5: Solve for x
   x = 4,025,525.47/3,066.55
6. Step 6: Final answer
   x = 1,312.72