Finding the Fourth Proportional to 2,390.46, 3,298.92 and 1,342.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.46 : 3,298.92 = 1,342.50 : x
2. Step 2: Convert to fraction form
   2,390.46/3,298.92 = 1,342.50/x
3. Step 3: Cross multiply
   2,390.46x = 3,298.92 × 1,342.50
4. Step 4: Simplify right side
   2,390.46x = 4,428,800.10
5. Step 5: Solve for x
   x = 4,428,800.10/2,390.46
6. Step 6: Final answer
   x = 1,852.70