Finding the Fourth Proportional to 2,360.20, 3,540.72 and 972.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,360.20 : 3,540.72 = 972.76 : x
2. Step 2: Convert to fraction form
   2,360.20/3,540.72 = 972.76/x
3. Step 3: Cross multiply
   2,360.20x = 3,540.72 × 972.76
4. Step 4: Simplify right side
   2,360.20x = 3,444,270.79
5. Step 5: Solve for x
   x = 3,444,270.79/2,360.20
6. Step 6: Final answer
   x = 1,459.32