Finding the Fourth Proportional to 1,348.89, 1,860.76 and 928.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.89 : 1,860.76 = 928.52 : x
2. Step 2: Convert to fraction form
   1,348.89/1,860.76 = 928.52/x
3. Step 3: Cross multiply
   1,348.89x = 1,860.76 × 928.52
4. Step 4: Simplify right side
   1,348.89x = 1,727,741.25
5. Step 5: Solve for x
   x = 1,727,741.25/1,348.89
6. Step 6: Final answer
   x = 1,280.86