Finding the Fourth Proportional to 1,591.92, 2,196.88 and 883.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.92 : 2,196.88 = 883.80 : x
2. Step 2: Convert to fraction form
   1,591.92/2,196.88 = 883.80/x
3. Step 3: Cross multiply
   1,591.92x = 2,196.88 × 883.80
4. Step 4: Simplify right side
   1,591.92x = 1,941,602.54
5. Step 5: Solve for x
   x = 1,941,602.54/1,591.92
6. Step 6: Final answer
   x = 1,219.66