Finding the Fourth Proportional to 2,772.32, 4,160.14 and 1,106.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,772.32 : 4,160.14 = 1,106.15 : x
2. Step 2: Convert to fraction form
   2,772.32/4,160.14 = 1,106.15/x
3. Step 3: Cross multiply
   2,772.32x = 4,160.14 × 1,106.15
4. Step 4: Simplify right side
   2,772.32x = 4,601,738.86
5. Step 5: Solve for x
   x = 4,601,738.86/2,772.32
6. Step 6: Final answer
   x = 1,659.89