Finding the Fourth Proportional to 6,398.10, 8,831.52 and 3,746.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,398.10 : 8,831.52 = 3,746.34 : x
2. Step 2: Convert to fraction form
   6,398.10/8,831.52 = 3,746.34/x
3. Step 3: Cross multiply
   6,398.10x = 8,831.52 × 3,746.34
4. Step 4: Simplify right side
   6,398.10x = 33,085,876.64
5. Step 5: Solve for x
   x = 33,085,876.64/6,398.10
6. Step 6: Final answer
   x = 5,171.20