Finding the Fourth Proportional to 2,869.10, 4,300.86 and 1,226.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.10 : 4,300.86 = 1,226.06 : x
2. Step 2: Convert to fraction form
   2,869.10/4,300.86 = 1,226.06/x
3. Step 3: Cross multiply
   2,869.10x = 4,300.86 × 1,226.06
4. Step 4: Simplify right side
   2,869.10x = 5,273,112.41
5. Step 5: Solve for x
   x = 5,273,112.41/2,869.10
6. Step 6: Final answer
   x = 1,837.90