Finding the Fourth Proportional to 2,920.30, 4,381.15 and 972.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920.30 : 4,381.15 = 972.52 : x
2. Step 2: Convert to fraction form
   2,920.30/4,381.15 = 972.52/x
3. Step 3: Cross multiply
   2,920.30x = 4,381.15 × 972.52
4. Step 4: Simplify right side
   2,920.30x = 4,260,756.00
5. Step 5: Solve for x
   x = 4,260,756.00/2,920.30
6. Step 6: Final answer
   x = 1,459.01