Finding the Fourth Proportional to 1,551.49, 2,141.06 and 888.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.49 : 2,141.06 = 888.31 : x
2. Step 2: Convert to fraction form
   1,551.49/2,141.06 = 888.31/x
3. Step 3: Cross multiply
   1,551.49x = 2,141.06 × 888.31
4. Step 4: Simplify right side
   1,551.49x = 1,901,920.57
5. Step 5: Solve for x
   x = 1,901,920.57/1,551.49
6. Step 6: Final answer
   x = 1,225.87