Finding the Fourth Proportional to 2,869.02, 4,302.18 and 1,019.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.02 : 4,302.18 = 1,019.39 : x
2. Step 2: Convert to fraction form
   2,869.02/4,302.18 = 1,019.39/x
3. Step 3: Cross multiply
   2,869.02x = 4,302.18 × 1,019.39
4. Step 4: Simplify right side
   2,869.02x = 4,385,577.76
5. Step 5: Solve for x
   x = 4,385,577.76/2,869.02
6. Step 6: Final answer
   x = 1,528.60