Finding the Fourth Proportional to 2,490.38, 3,435.72 and 1,606.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,490.38 : 3,435.72 = 1,606.68 : x
2. Step 2: Convert to fraction form
   2,490.38/3,435.72 = 1,606.68/x
3. Step 3: Cross multiply
   2,490.38x = 3,435.72 × 1,606.68
4. Step 4: Simplify right side
   2,490.38x = 5,520,102.61
5. Step 5: Solve for x
   x = 5,520,102.61/2,490.38
6. Step 6: Final answer
   x = 2,216.57