Finding the Fourth Proportional to 1,360.71, 1,878.03 and 882.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.71 : 1,878.03 = 882.77 : x
2. Step 2: Convert to fraction form
   1,360.71/1,878.03 = 882.77/x
3. Step 3: Cross multiply
   1,360.71x = 1,878.03 × 882.77
4. Step 4: Simplify right side
   1,360.71x = 1,657,859.15
5. Step 5: Solve for x
   x = 1,657,859.15/1,360.71
6. Step 6: Final answer
   x = 1,218.38