Finding the Fourth Proportional to 2,917.89, 4,375.88 and 969.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,917.89 : 4,375.88 = 969.57 : x
2. Step 2: Convert to fraction form
   2,917.89/4,375.88 = 969.57/x
3. Step 3: Cross multiply
   2,917.89x = 4,375.88 × 969.57
4. Step 4: Simplify right side
   2,917.89x = 4,242,717.12
5. Step 5: Solve for x
   x = 4,242,717.12/2,917.89
6. Step 6: Final answer
   x = 1,454.04