Finding the Fourth Proportional to 1,533.93, 2,116.35 and 928.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,533.93 : 2,116.35 = 928.10 : x
2. Step 2: Convert to fraction form
   1,533.93/2,116.35 = 928.10/x
3. Step 3: Cross multiply
   1,533.93x = 2,116.35 × 928.10
4. Step 4: Simplify right side
   1,533.93x = 1,964,173.85
5. Step 5: Solve for x
   x = 1,964,173.85/1,533.93
6. Step 6: Final answer
   x = 1,280.48