Finding the Fourth Proportional to 2,534.80, 3,801.72 and 890.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,534.80 : 3,801.72 = 890.96 : x
2. Step 2: Convert to fraction form
   2,534.80/3,801.72 = 890.96/x
3. Step 3: Cross multiply
   2,534.80x = 3,801.72 × 890.96
4. Step 4: Simplify right side
   2,534.80x = 3,387,180.45
5. Step 5: Solve for x
   x = 3,387,180.45/2,534.80
6. Step 6: Final answer
   x = 1,336.27