Finding the Fourth Proportional to 1,517.77, 2,094.15 and 928.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517.77 : 2,094.15 = 928.09 : x
2. Step 2: Convert to fraction form
   1,517.77/2,094.15 = 928.09/x
3. Step 3: Cross multiply
   1,517.77x = 2,094.15 × 928.09
4. Step 4: Simplify right side
   1,517.77x = 1,943,559.67
5. Step 5: Solve for x
   x = 1,943,559.67/1,517.77
6. Step 6: Final answer
   x = 1,280.54