Finding the Fourth Proportional to 2,406.72, 3,321.04 and 1,358.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.72 : 3,321.04 = 1,358.88 : x
2. Step 2: Convert to fraction form
   2,406.72/3,321.04 = 1,358.88/x
3. Step 3: Cross multiply
   2,406.72x = 3,321.04 × 1,358.88
4. Step 4: Simplify right side
   2,406.72x = 4,512,894.84
5. Step 5: Solve for x
   x = 4,512,894.84/2,406.72
6. Step 6: Final answer
   x = 1,875.12