Finding the Fourth Proportional to 1,426.59, 1,969.02 and 928.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.59 : 1,969.02 = 928.35 : x
2. Step 2: Convert to fraction form
   1,426.59/1,969.02 = 928.35/x
3. Step 3: Cross multiply
   1,426.59x = 1,969.02 × 928.35
4. Step 4: Simplify right side
   1,426.59x = 1,827,939.72
5. Step 5: Solve for x
   x = 1,827,939.72/1,426.59
6. Step 6: Final answer
   x = 1,281.34