Finding the Fourth Proportional to 2,870.10, 4,302.36 and 1,227.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.10 : 4,302.36 = 1,227.06 : x
2. Step 2: Convert to fraction form
   2,870.10/4,302.36 = 1,227.06/x
3. Step 3: Cross multiply
   2,870.10x = 4,302.36 × 1,227.06
4. Step 4: Simplify right side
   2,870.10x = 5,279,253.86
5. Step 5: Solve for x
   x = 5,279,253.86/2,870.10
6. Step 6: Final answer
   x = 1,839.40