Finding the Fourth Proportional to 3,045.17, 4,568.00 and 853.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,045.17 : 4,568.00 = 853.89 : x
2. Step 2: Convert to fraction form
   3,045.17/4,568.00 = 853.89/x
3. Step 3: Cross multiply
   3,045.17x = 4,568.00 × 853.89
4. Step 4: Simplify right side
   3,045.17x = 3,900,565.25
5. Step 5: Solve for x
   x = 3,900,565.25/3,045.17
6. Step 6: Final answer
   x = 1,280.90