Finding the Fourth Proportional to 2,978.55, 4,101.05 and 2,529.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.55 : 4,101.05 = 2,529.48 : x
2. Step 2: Convert to fraction form
   2,978.55/4,101.05 = 2,529.48/x
3. Step 3: Cross multiply
   2,978.55x = 4,101.05 × 2,529.48
4. Step 4: Simplify right side
   2,978.55x = 10,373,545.66
5. Step 5: Solve for x
   x = 10,373,545.66/2,978.55
6. Step 6: Final answer
   x = 3,482.75