Finding the Fourth Proportional to 2,084.43, 3,126.69 and 623.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.43 : 3,126.69 = 623.61 : x
2. Step 2: Convert to fraction form
   2,084.43/3,126.69 = 623.61/x
3. Step 3: Cross multiply
   2,084.43x = 3,126.69 × 623.61
4. Step 4: Simplify right side
   2,084.43x = 1,949,835.15
5. Step 5: Solve for x
   x = 1,949,835.15/2,084.43
6. Step 6: Final answer
   x = 935.43