Finding the Fourth Proportional to 2,385.25, 3,579.93 and 925.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.25 : 3,579.93 = 925.43 : x
2. Step 2: Convert to fraction form
   2,385.25/3,579.93 = 925.43/x
3. Step 3: Cross multiply
   2,385.25x = 3,579.93 × 925.43
4. Step 4: Simplify right side
   2,385.25x = 3,312,956.72
5. Step 5: Solve for x
   x = 3,312,956.72/2,385.25
6. Step 6: Final answer
   x = 1,388.94