Finding the Fourth Proportional to 2,390.50, 3,298.89 and 1,342.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.50 : 3,298.89 = 1,342.63 : x
2. Step 2: Convert to fraction form
   2,390.50/3,298.89 = 1,342.63/x
3. Step 3: Cross multiply
   2,390.50x = 3,298.89 × 1,342.63
4. Step 4: Simplify right side
   2,390.50x = 4,429,188.68
5. Step 5: Solve for x
   x = 4,429,188.68/2,390.50
6. Step 6: Final answer
   x = 1,852.83