Finding the Fourth Proportional to 2,853.91, 4,281.53 and 1,210.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,853.91 : 4,281.53 = 1,210.52 : x
2. Step 2: Convert to fraction form
   2,853.91/4,281.53 = 1,210.52/x
3. Step 3: Cross multiply
   2,853.91x = 4,281.53 × 1,210.52
4. Step 4: Simplify right side
   2,853.91x = 5,182,882.35
5. Step 5: Solve for x
   x = 5,182,882.35/2,853.91
6. Step 6: Final answer
   x = 1,816.06