Finding the Fourth Proportional to 2,869.47, 4,302.86 and 1,308.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.47 : 4,302.86 = 1,308.51 : x
2. Step 2: Convert to fraction form
   2,869.47/4,302.86 = 1,308.51/x
3. Step 3: Cross multiply
   2,869.47x = 4,302.86 × 1,308.51
4. Step 4: Simplify right side
   2,869.47x = 5,630,328.80
5. Step 5: Solve for x
   x = 5,630,328.80/2,869.47
6. Step 6: Final answer
   x = 1,962.15