Finding the Fourth Proportional to 1,591.78, 2,196.60 and 893.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.78 : 2,196.60 = 893.14 : x
2. Step 2: Convert to fraction form
   1,591.78/2,196.60 = 893.14/x
3. Step 3: Cross multiply
   1,591.78x = 2,196.60 × 893.14
4. Step 4: Simplify right side
   1,591.78x = 1,961,871.32
5. Step 5: Solve for x
   x = 1,961,871.32/1,591.78
6. Step 6: Final answer
   x = 1,232.50