Finding the Fourth Proportional to 1,707.23, 2,353.15 and 1,147.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.23 : 2,353.15 = 1,147.42 : x
2. Step 2: Convert to fraction form
   1,707.23/2,353.15 = 1,147.42/x
3. Step 3: Cross multiply
   1,707.23x = 2,353.15 × 1,147.42
4. Step 4: Simplify right side
   1,707.23x = 2,700,042.51
5. Step 5: Solve for x
   x = 2,700,042.51/1,707.23
6. Step 6: Final answer
   x = 1,581.54