Finding the Fourth Proportional to 1,348.59, 1,860.80 and 824.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.59 : 1,860.80 = 824.25 : x
2. Step 2: Convert to fraction form
   1,348.59/1,860.80 = 824.25/x
3. Step 3: Cross multiply
   1,348.59x = 1,860.80 × 824.25
4. Step 4: Simplify right side
   1,348.59x = 1,533,760.28
5. Step 5: Solve for x
   x = 1,533,760.28/1,348.59
6. Step 6: Final answer
   x = 1,137.31