Finding the Fourth Proportional to 3,485.79, 5,229.33 and 1,146.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,485.79 : 5,229.33 = 1,146.47 : x
2. Step 2: Convert to fraction form
   3,485.79/5,229.33 = 1,146.47/x
3. Step 3: Cross multiply
   3,485.79x = 5,229.33 × 1,146.47
4. Step 4: Simplify right side
   3,485.79x = 5,995,256.89
5. Step 5: Solve for x
   x = 5,995,256.89/3,485.79
6. Step 6: Final answer
   x = 1,719.91