Finding the Fourth Proportional to 2,288.90, 3,433.98 and 971.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.90 : 3,433.98 = 971.94 : x
2. Step 2: Convert to fraction form
   2,288.90/3,433.98 = 971.94/x
3. Step 3: Cross multiply
   2,288.90x = 3,433.98 × 971.94
4. Step 4: Simplify right side
   2,288.90x = 3,337,622.52
5. Step 5: Solve for x
   x = 3,337,622.52/2,288.90
6. Step 6: Final answer
   x = 1,458.18