Finding the Fourth Proportional to 2,657.50, 3,666.92 and 1,478.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.50 : 3,666.92 = 1,478.57 : x
2. Step 2: Convert to fraction form
   2,657.50/3,666.92 = 1,478.57/x
3. Step 3: Cross multiply
   2,657.50x = 3,666.92 × 1,478.57
4. Step 4: Simplify right side
   2,657.50x = 5,421,779.57
5. Step 5: Solve for x
   x = 5,421,779.57/2,657.50
6. Step 6: Final answer
   x = 2,040.18