Finding the Fourth Proportional to 2,405.31, 3,607.38 and 924.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,405.31 : 3,607.38 = 924.24 : x
2. Step 2: Convert to fraction form
   2,405.31/3,607.38 = 924.24/x
3. Step 3: Cross multiply
   2,405.31x = 3,607.38 × 924.24
4. Step 4: Simplify right side
   2,405.31x = 3,334,084.89
5. Step 5: Solve for x
   x = 3,334,084.89/2,405.31
6. Step 6: Final answer
   x = 1,386.14