Finding the Fourth Proportional to 5,634.48, 8,440.76 and 3,680.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,634.48 : 8,440.76 = 3,680.76 : x
2. Step 2: Convert to fraction form
   5,634.48/8,440.76 = 3,680.76/x
3. Step 3: Cross multiply
   5,634.48x = 8,440.76 × 3,680.76
4. Step 4: Simplify right side
   5,634.48x = 31,068,411.78
5. Step 5: Solve for x
   x = 31,068,411.78/5,634.48
6. Step 6: Final answer
   x = 5,513.98