Finding the Fourth Proportional to 2,526.82, 3,790.21 and 771.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.82 : 3,790.21 = 771.82 : x
2. Step 2: Convert to fraction form
   2,526.82/3,790.21 = 771.82/x
3. Step 3: Cross multiply
   2,526.82x = 3,790.21 × 771.82
4. Step 4: Simplify right side
   2,526.82x = 2,925,359.88
5. Step 5: Solve for x
   x = 2,925,359.88/2,526.82
6. Step 6: Final answer
   x = 1,157.72