Finding the Fourth Proportional to 2,632.40, 3,948.18 and 877.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.40 : 3,948.18 = 877.43 : x
2. Step 2: Convert to fraction form
   2,632.40/3,948.18 = 877.43/x
3. Step 3: Cross multiply
   2,632.40x = 3,948.18 × 877.43
4. Step 4: Simplify right side
   2,632.40x = 3,464,231.84
5. Step 5: Solve for x
   x = 3,464,231.84/2,632.40
6. Step 6: Final answer
   x = 1,316.00