Finding the Fourth Proportional to 3,530.61, 5,294.67 and 1,064.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,530.61 : 5,294.67 = 1,064.79 : x
2. Step 2: Convert to fraction form
   3,530.61/5,294.67 = 1,064.79/x
3. Step 3: Cross multiply
   3,530.61x = 5,294.67 × 1,064.79
4. Step 4: Simplify right side
   3,530.61x = 5,637,711.67
5. Step 5: Solve for x
   x = 5,637,711.67/3,530.61
6. Step 6: Final answer
   x = 1,596.81