Finding the Fourth Proportional to 1,591.91, 2,196.76 and 883.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.91 : 2,196.76 = 883.79 : x
2. Step 2: Convert to fraction form
   1,591.91/2,196.76 = 883.79/x
3. Step 3: Cross multiply
   1,591.91x = 2,196.76 × 883.79
4. Step 4: Simplify right side
   1,591.91x = 1,941,459.12
5. Step 5: Solve for x
   x = 1,941,459.12/1,591.91
6. Step 6: Final answer
   x = 1,219.58