Finding the Fourth Proportional to 2,632.20, 3,948.27 and 877.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.20 : 3,948.27 = 877.34 : x
2. Step 2: Convert to fraction form
   2,632.20/3,948.27 = 877.34/x
3. Step 3: Cross multiply
   2,632.20x = 3,948.27 × 877.34
4. Step 4: Simplify right side
   2,632.20x = 3,463,955.46
5. Step 5: Solve for x
   x = 3,463,955.46/2,632.20
6. Step 6: Final answer
   x = 1,315.99