Finding the Fourth Proportional to 1,591.88, 2,196.88 and 893.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.88 : 2,196.88 = 893.30 : x
2. Step 2: Convert to fraction form
   1,591.88/2,196.88 = 893.30/x
3. Step 3: Cross multiply
   1,591.88x = 2,196.88 × 893.30
4. Step 4: Simplify right side
   1,591.88x = 1,962,459.69
5. Step 5: Solve for x
   x = 1,962,459.69/1,591.88
6. Step 6: Final answer
   x = 1,232.80