Finding the Fourth Proportional to 1,348.89, 1,861.47 and 824.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.89 : 1,861.47 = 824.92 : x
2. Step 2: Convert to fraction form
   1,348.89/1,861.47 = 824.92/x
3. Step 3: Cross multiply
   1,348.89x = 1,861.47 × 824.92
4. Step 4: Simplify right side
   1,348.89x = 1,535,563.83
5. Step 5: Solve for x
   x = 1,535,563.83/1,348.89
6. Step 6: Final answer
   x = 1,138.39