Finding the Fourth Proportional to 3,066.50, 4,599.78 and 875.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,066.50 : 4,599.78 = 875.18 : x
2. Step 2: Convert to fraction form
   3,066.50/4,599.78 = 875.18/x
3. Step 3: Cross multiply
   3,066.50x = 4,599.78 × 875.18
4. Step 4: Simplify right side
   3,066.50x = 4,025,635.46
5. Step 5: Solve for x
   x = 4,025,635.46/3,066.50
6. Step 6: Final answer
   x = 1,312.78