Finding the Fourth Proportional to 1,591.47, 2,196.23 and 970.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.47 : 2,196.23 = 970.47 : x
2. Step 2: Convert to fraction form
   1,591.47/2,196.23 = 970.47/x
3. Step 3: Cross multiply
   1,591.47x = 2,196.23 × 970.47
4. Step 4: Simplify right side
   1,591.47x = 2,131,375.33
5. Step 5: Solve for x
   x = 2,131,375.33/1,591.47
6. Step 6: Final answer
   x = 1,339.25