Finding the Fourth Proportional to 1,767.86, 2,649.86 and 888.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.86 : 2,649.86 = 888.25 : x
2. Step 2: Convert to fraction form
   1,767.86/2,649.86 = 888.25/x
3. Step 3: Cross multiply
   1,767.86x = 2,649.86 × 888.25
4. Step 4: Simplify right side
   1,767.86x = 2,353,738.15
5. Step 5: Solve for x
   x = 2,353,738.15/1,767.86
6. Step 6: Final answer
   x = 1,331.41