Finding the Fourth Proportional to 2,522.56, 3,784.20 and 790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.56 : 3,784.20 = 790.72 : x
2. Step 2: Convert to fraction form
   2,522.56/3,784.20 = 790.72/x
3. Step 3: Cross multiply
   2,522.56x = 3,784.20 × 790.72
4. Step 4: Simplify right side
   2,522.56x = 2,992,242.62
5. Step 5: Solve for x
   x = 2,992,242.62/2,522.56
6. Step 6: Final answer
   x = 1,186.19