Finding the Fourth Proportional to 2,390.91, 3,586.35 and 1,416.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.91 : 3,586.35 = 1,416.32 : x
2. Step 2: Convert to fraction form
   2,390.91/3,586.35 = 1,416.32/x
3. Step 3: Cross multiply
   2,390.91x = 3,586.35 × 1,416.32
4. Step 4: Simplify right side
   2,390.91x = 5,079,401.30
5. Step 5: Solve for x
   x = 5,079,401.30/2,390.91
6. Step 6: Final answer
   x = 2,124.46