Finding the Fourth Proportional to 2,774.22, 4,158.56 and 1,131.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.22 : 4,158.56 = 1,131.72 : x
2. Step 2: Convert to fraction form
   2,774.22/4,158.56 = 1,131.72/x
3. Step 3: Cross multiply
   2,774.22x = 4,158.56 × 1,131.72
4. Step 4: Simplify right side
   2,774.22x = 4,706,325.52
5. Step 5: Solve for x
   x = 4,706,325.52/2,774.22
6. Step 6: Final answer
   x = 1,696.45