Finding the Fourth Proportional to 1,458.35, 2,012.34 and 1,064.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,458.35 : 2,012.34 = 1,064.69 : x
2. Step 2: Convert to fraction form
   1,458.35/2,012.34 = 1,064.69/x
3. Step 3: Cross multiply
   1,458.35x = 2,012.34 × 1,064.69
4. Step 4: Simplify right side
   1,458.35x = 2,142,518.27
5. Step 5: Solve for x
   x = 2,142,518.27/1,458.35
6. Step 6: Final answer
   x = 1,469.14