Finding the Fourth Proportional to 2,385.79, 3,577.98 and 924.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.79 : 3,577.98 = 924.59 : x
2. Step 2: Convert to fraction form
   2,385.79/3,577.98 = 924.59/x
3. Step 3: Cross multiply
   2,385.79x = 3,577.98 × 924.59
4. Step 4: Simplify right side
   2,385.79x = 3,308,164.53
5. Step 5: Solve for x
   x = 3,308,164.53/2,385.79
6. Step 6: Final answer
   x = 1,386.61