Finding the Fourth Proportional to 2,622.52, 3,931.35 and 889.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.52 : 3,931.35 = 889.93 : x
2. Step 2: Convert to fraction form
   2,622.52/3,931.35 = 889.93/x
3. Step 3: Cross multiply
   2,622.52x = 3,931.35 × 889.93
4. Step 4: Simplify right side
   2,622.52x = 3,498,626.31
5. Step 5: Solve for x
   x = 3,498,626.31/2,622.52
6. Step 6: Final answer
   x = 1,334.07