Finding the Fourth Proportional to 2,442.42, 3,656.72 and 2,211.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.42 : 3,656.72 = 2,211.74 : x
2. Step 2: Convert to fraction form
   2,442.42/3,656.72 = 2,211.74/x
3. Step 3: Cross multiply
   2,442.42x = 3,656.72 × 2,211.74
4. Step 4: Simplify right side
   2,442.42x = 8,087,713.89
5. Step 5: Solve for x
   x = 8,087,713.89/2,442.42
6. Step 6: Final answer
   x = 3,311.35