Finding the Fourth Proportional to 1,301.72, 1,795.62 and 887

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.72 : 1,795.62 = 887 : x
2. Step 2: Convert to fraction form
   1,301.72/1,795.62 = 887/x
3. Step 3: Cross multiply
   1,301.72x = 1,795.62 × 887
4. Step 4: Simplify right side
   1,301.72x = 1,592,714.94
5. Step 5: Solve for x
   x = 1,592,714.94/1,301.72
6. Step 6: Final answer
   x = 1,223.55