Finding the Fourth Proportional to 1,301.98, 1,794.86 and 928.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,301.98 : 1,794.86 = 928.31 : x
2. Step 2: Convert to fraction form
   1,301.98/1,794.86 = 928.31/x
3. Step 3: Cross multiply
   1,301.98x = 1,794.86 × 928.31
4. Step 4: Simplify right side
   1,301.98x = 1,666,188.81
5. Step 5: Solve for x
   x = 1,666,188.81/1,301.98
6. Step 6: Final answer
   x = 1,279.74