Finding the Fourth Proportional to 1,356.22, 1,871.89 and 883.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.22 : 1,871.89 = 883.29 : x
2. Step 2: Convert to fraction form
   1,356.22/1,871.89 = 883.29/x
3. Step 3: Cross multiply
   1,356.22x = 1,871.89 × 883.29
4. Step 4: Simplify right side
   1,356.22x = 1,653,416.00
5. Step 5: Solve for x
   x = 1,653,416.00/1,356.22
6. Step 6: Final answer
   x = 1,219.14