Finding the Fourth Proportional to 1,674.16, 2,310.35 and 928.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.16 : 2,310.35 = 928.13 : x
2. Step 2: Convert to fraction form
   1,674.16/2,310.35 = 928.13/x
3. Step 3: Cross multiply
   1,674.16x = 2,310.35 × 928.13
4. Step 4: Simplify right side
   1,674.16x = 2,144,300.50
5. Step 5: Solve for x
   x = 2,144,300.50/1,674.16
6. Step 6: Final answer
   x = 1,280.82