Finding the Fourth Proportional to 2,084.16, 3,126.77 and 623.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,084.16 : 3,126.77 = 623.31 : x
2. Step 2: Convert to fraction form
   2,084.16/3,126.77 = 623.31/x
3. Step 3: Cross multiply
   2,084.16x = 3,126.77 × 623.31
4. Step 4: Simplify right side
   2,084.16x = 1,948,947.01
5. Step 5: Solve for x
   x = 1,948,947.01/2,084.16
6. Step 6: Final answer
   x = 935.12