Finding the Fourth Proportional to 2,106.88, 3,158.48 and 1,065.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.88 : 3,158.48 = 1,065.52 : x
2. Step 2: Convert to fraction form
   2,106.88/3,158.48 = 1,065.52/x
3. Step 3: Cross multiply
   2,106.88x = 3,158.48 × 1,065.52
4. Step 4: Simplify right side
   2,106.88x = 3,365,423.61
5. Step 5: Solve for x
   x = 3,365,423.61/2,106.88
6. Step 6: Final answer
   x = 1,597.35