Finding the Fourth Proportional to 1,348.43, 1,860.72 and 824.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.43 : 1,860.72 = 824.36 : x
2. Step 2: Convert to fraction form
   1,348.43/1,860.72 = 824.36/x
3. Step 3: Cross multiply
   1,348.43x = 1,860.72 × 824.36
4. Step 4: Simplify right side
   1,348.43x = 1,533,903.14
5. Step 5: Solve for x
   x = 1,533,903.14/1,348.43
6. Step 6: Final answer
   x = 1,137.55