Finding the Fourth Proportional to 895.90, 1,238.56 and 887.69

Step by Step Solution

1. Step 1: Write the proportion equation
   895.90 : 1,238.56 = 887.69 : x
2. Step 2: Convert to fraction form
   895.90/1,238.56 = 887.69/x
3. Step 3: Cross multiply
   895.90x = 1,238.56 × 887.69
4. Step 4: Simplify right side
   895.90x = 1,099,457.33
5. Step 5: Solve for x
   x = 1,099,457.33/895.90
6. Step 6: Final answer
   x = 1,227.21