Finding the Fourth Proportional to 1,347.52, 1,858.20 and 928.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.52 : 1,858.20 = 928.24 : x
2. Step 2: Convert to fraction form
   1,347.52/1,858.20 = 928.24/x
3. Step 3: Cross multiply
   1,347.52x = 1,858.20 × 928.24
4. Step 4: Simplify right side
   1,347.52x = 1,724,855.57
5. Step 5: Solve for x
   x = 1,724,855.57/1,347.52
6. Step 6: Final answer
   x = 1,280.02