Finding the Fourth Proportional to 2,521.45, 3,782.05 and 766.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.45 : 3,782.05 = 766.37 : x
2. Step 2: Convert to fraction form
   2,521.45/3,782.05 = 766.37/x
3. Step 3: Cross multiply
   2,521.45x = 3,782.05 × 766.37
4. Step 4: Simplify right side
   2,521.45x = 2,898,449.66
5. Step 5: Solve for x
   x = 2,898,449.66/2,521.45
6. Step 6: Final answer
   x = 1,149.52