Finding the Fourth Proportional to 1,591.79, 2,196.78 and 883.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.79 : 2,196.78 = 883.74 : x
2. Step 2: Convert to fraction form
   1,591.79/2,196.78 = 883.74/x
3. Step 3: Cross multiply
   1,591.79x = 2,196.78 × 883.74
4. Step 4: Simplify right side
   1,591.79x = 1,941,382.36
5. Step 5: Solve for x
   x = 1,941,382.36/1,591.79
6. Step 6: Final answer
   x = 1,219.63