Finding the Fourth Proportional to 2,521.58, 3,782.76 and 790.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.58 : 3,782.76 = 790.22 : x
2. Step 2: Convert to fraction form
   2,521.58/3,782.76 = 790.22/x
3. Step 3: Cross multiply
   2,521.58x = 3,782.76 × 790.22
4. Step 4: Simplify right side
   2,521.58x = 2,989,212.61
5. Step 5: Solve for x
   x = 2,989,212.61/2,521.58
6. Step 6: Final answer
   x = 1,185.45