Finding the Fourth Proportional to 1,863.06, 2,792.61 and 887.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863.06 : 2,792.61 = 887.82 : x
2. Step 2: Convert to fraction form
   1,863.06/2,792.61 = 887.82/x
3. Step 3: Cross multiply
   1,863.06x = 2,792.61 × 887.82
4. Step 4: Simplify right side
   1,863.06x = 2,479,335.01
5. Step 5: Solve for x
   x = 2,479,335.01/1,863.06
6. Step 6: Final answer
   x = 1,330.79