Finding the Fourth Proportional to 1,591.40, 2,196.02 and 883.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.40 : 2,196.02 = 883.22 : x
2. Step 2: Convert to fraction form
   1,591.40/2,196.02 = 883.22/x
3. Step 3: Cross multiply
   1,591.40x = 2,196.02 × 883.22
4. Step 4: Simplify right side
   1,591.40x = 1,939,568.78
5. Step 5: Solve for x
   x = 1,939,568.78/1,591.40
6. Step 6: Final answer
   x = 1,218.78