Finding the Fourth Proportional to 3,061.11, 4,588.98 and 1,213.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.11 : 4,588.98 = 1,213.53 : x
2. Step 2: Convert to fraction form
   3,061.11/4,588.98 = 1,213.53/x
3. Step 3: Cross multiply
   3,061.11x = 4,588.98 × 1,213.53
4. Step 4: Simplify right side
   3,061.11x = 5,568,835.89
5. Step 5: Solve for x
   x = 5,568,835.89/3,061.11
6. Step 6: Final answer
   x = 1,819.22