Finding the Fourth Proportional to 2,748.72, 3,790.35 and 2,526.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.72 : 3,790.35 = 2,526.78 : x
2. Step 2: Convert to fraction form
   2,748.72/3,790.35 = 2,526.78/x
3. Step 3: Cross multiply
   2,748.72x = 3,790.35 × 2,526.78
4. Step 4: Simplify right side
   2,748.72x = 9,577,380.57
5. Step 5: Solve for x
   x = 9,577,380.57/2,748.72
6. Step 6: Final answer
   x = 3,484.31