Finding the Fourth Proportional to 2,152.47, 3,229.34 and 1,113.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.47 : 3,229.34 = 1,113.06 : x
2. Step 2: Convert to fraction form
   2,152.47/3,229.34 = 1,113.06/x
3. Step 3: Cross multiply
   2,152.47x = 3,229.34 × 1,113.06
4. Step 4: Simplify right side
   2,152.47x = 3,594,443.62
5. Step 5: Solve for x
   x = 3,594,443.62/2,152.47
6. Step 6: Final answer
   x = 1,669.92