Finding the Fourth Proportional to 2,869.86, 4,303.35 and 1,020.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.86 : 4,303.35 = 1,020.69 : x
2. Step 2: Convert to fraction form
   2,869.86/4,303.35 = 1,020.69/x
3. Step 3: Cross multiply
   2,869.86x = 4,303.35 × 1,020.69
4. Step 4: Simplify right side
   2,869.86x = 4,392,386.31
5. Step 5: Solve for x
   x = 4,392,386.31/2,869.86
6. Step 6: Final answer
   x = 1,530.52