Finding the Fourth Proportional to 1,642.75, 2,266.98 and 896.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.75 : 2,266.98 = 896.69 : x
2. Step 2: Convert to fraction form
   1,642.75/2,266.98 = 896.69/x
3. Step 3: Cross multiply
   1,642.75x = 2,266.98 × 896.69
4. Step 4: Simplify right side
   1,642.75x = 2,032,778.30
5. Step 5: Solve for x
   x = 2,032,778.30/1,642.75
6. Step 6: Final answer
   x = 1,237.42