Finding the Fourth Proportional to 1,047.60, 1,570.23 and 462.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.60 : 1,570.23 = 462.42 : x
2. Step 2: Convert to fraction form
   1,047.60/1,570.23 = 462.42/x
3. Step 3: Cross multiply
   1,047.60x = 1,570.23 × 462.42
4. Step 4: Simplify right side
   1,047.60x = 726,105.76
5. Step 5: Solve for x
   x = 726,105.76/1,047.60
6. Step 6: Final answer
   x = 693.11