Finding the Fourth Proportional to 2,359.01, 3,539.86 and 972.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,359.01 : 3,539.86 = 972.15 : x
2. Step 2: Convert to fraction form
   2,359.01/3,539.86 = 972.15/x
3. Step 3: Cross multiply
   2,359.01x = 3,539.86 × 972.15
4. Step 4: Simplify right side
   2,359.01x = 3,441,272.47
5. Step 5: Solve for x
   x = 3,441,272.47/2,359.01
6. Step 6: Final answer
   x = 1,458.78