Finding the Fourth Proportional to 1,592.31, 2,196.92 and 928.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,592.31 : 2,196.92 = 928.77 : x
2. Step 2: Convert to fraction form
   1,592.31/2,196.92 = 928.77/x
3. Step 3: Cross multiply
   1,592.31x = 2,196.92 × 928.77
4. Step 4: Simplify right side
   1,592.31x = 2,040,427.47
5. Step 5: Solve for x
   x = 2,040,427.47/1,592.31
6. Step 6: Final answer
   x = 1,281.43