Finding the Fourth Proportional to 2,160.48, 2,979.86 and 1,862.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.48 : 2,979.86 = 1,862.27 : x
2. Step 2: Convert to fraction form
   2,160.48/2,979.86 = 1,862.27/x
3. Step 3: Cross multiply
   2,160.48x = 2,979.86 × 1,862.27
4. Step 4: Simplify right side
   2,160.48x = 5,549,279.67
5. Step 5: Solve for x
   x = 5,549,279.67/2,160.48
6. Step 6: Final answer
   x = 2,568.54