Finding the Fourth Proportional to 1,046.34, 1,570.17 and 397.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.34 : 1,570.17 = 397.02 : x
2. Step 2: Convert to fraction form
   1,046.34/1,570.17 = 397.02/x
3. Step 3: Cross multiply
   1,046.34x = 1,570.17 × 397.02
4. Step 4: Simplify right side
   1,046.34x = 623,388.89
5. Step 5: Solve for x
   x = 623,388.89/1,046.34
6. Step 6: Final answer
   x = 595.78