Finding the Fourth Proportional to 1,064.93, 1,469.15 and 610.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.93 : 1,469.15 = 610.45 : x
2. Step 2: Convert to fraction form
   1,064.93/1,469.15 = 610.45/x
3. Step 3: Cross multiply
   1,064.93x = 1,469.15 × 610.45
4. Step 4: Simplify right side
   1,064.93x = 896,835.27
5. Step 5: Solve for x
   x = 896,835.27/1,064.93
6. Step 6: Final answer
   x = 842.15