Finding the Fourth Proportional to 1,360.78, 1,878.93 and 888.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.78 : 1,878.93 = 888.82 : x
2. Step 2: Convert to fraction form
   1,360.78/1,878.93 = 888.82/x
3. Step 3: Cross multiply
   1,360.78x = 1,878.93 × 888.82
4. Step 4: Simplify right side
   1,360.78x = 1,670,030.56
5. Step 5: Solve for x
   x = 1,670,030.56/1,360.78
6. Step 6: Final answer
   x = 1,227.26