Finding the Fourth Proportional to 2,093.33, 3,139.25 and 631.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.33 : 3,139.25 = 631.95 : x
2. Step 2: Convert to fraction form
   2,093.33/3,139.25 = 631.95/x
3. Step 3: Cross multiply
   2,093.33x = 3,139.25 × 631.95
4. Step 4: Simplify right side
   2,093.33x = 1,983,845.88
5. Step 5: Solve for x
   x = 1,983,845.88/2,093.33
6. Step 6: Final answer
   x = 947.70