Finding the Fourth Proportional to 1,592.21, 2,196.51 and 928.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,592.21 : 2,196.51 = 928.65 : x
2. Step 2: Convert to fraction form
   1,592.21/2,196.51 = 928.65/x
3. Step 3: Cross multiply
   1,592.21x = 2,196.51 × 928.65
4. Step 4: Simplify right side
   1,592.21x = 2,039,789.01
5. Step 5: Solve for x
   x = 2,039,789.01/1,592.21
6. Step 6: Final answer
   x = 1,281.11