Finding the Fourth Proportional to 2,460.72, 3,679.20 and 2,402.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.72 : 3,679.20 = 2,402.40 : x
2. Step 2: Convert to fraction form
   2,460.72/3,679.20 = 2,402.40/x
3. Step 3: Cross multiply
   2,460.72x = 3,679.20 × 2,402.40
4. Step 4: Simplify right side
   2,460.72x = 8,838,910.08
5. Step 5: Solve for x
   x = 8,838,910.08/2,460.72
6. Step 6: Final answer
   x = 3,592.00