Finding the Fourth Proportional to 2,656.17, 3,984.24 and 924.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.17 : 3,984.24 = 924.79 : x
2. Step 2: Convert to fraction form
   2,656.17/3,984.24 = 924.79/x
3. Step 3: Cross multiply
   2,656.17x = 3,984.24 × 924.79
4. Step 4: Simplify right side
   2,656.17x = 3,684,585.31
5. Step 5: Solve for x
   x = 3,684,585.31/2,656.17
6. Step 6: Final answer
   x = 1,387.18