Finding the Fourth Proportional to 2,272.08, 3,134.52 and 1,338.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.08 : 3,134.52 = 1,338.96 : x
2. Step 2: Convert to fraction form
   2,272.08/3,134.52 = 1,338.96/x
3. Step 3: Cross multiply
   2,272.08x = 3,134.52 × 1,338.96
4. Step 4: Simplify right side
   2,272.08x = 4,196,996.90
5. Step 5: Solve for x
   x = 4,196,996.90/2,272.08
6. Step 6: Final answer
   x = 1,847.20