Finding the Fourth Proportional to 2,632.34, 3,948.78 and 852.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,632.34 : 3,948.78 = 852.95 : x
2. Step 2: Convert to fraction form
   2,632.34/3,948.78 = 852.95/x
3. Step 3: Cross multiply
   2,632.34x = 3,948.78 × 852.95
4. Step 4: Simplify right side
   2,632.34x = 3,368,111.90
5. Step 5: Solve for x
   x = 3,368,111.90/2,632.34
6. Step 6: Final answer
   x = 1,279.51