Finding the Fourth Proportional to 1,417.88, 1,955.88 and 887.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.88 : 1,955.88 = 887.12 : x
2. Step 2: Convert to fraction form
   1,417.88/1,955.88 = 887.12/x
3. Step 3: Cross multiply
   1,417.88x = 1,955.88 × 887.12
4. Step 4: Simplify right side
   1,417.88x = 1,735,100.27
5. Step 5: Solve for x
   x = 1,735,100.27/1,417.88
6. Step 6: Final answer
   x = 1,223.73