Finding the Fourth Proportional to 2,238.54, 3,090.61 and 1,442.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.54 : 3,090.61 = 1,442.17 : x
2. Step 2: Convert to fraction form
   2,238.54/3,090.61 = 1,442.17/x
3. Step 3: Cross multiply
   2,238.54x = 3,090.61 × 1,442.17
4. Step 4: Simplify right side
   2,238.54x = 4,457,179.10
5. Step 5: Solve for x
   x = 4,457,179.10/2,238.54
6. Step 6: Final answer
   x = 1,991.11