Finding the Fourth Proportional to 2,119.19, 3,179.42 and 1,023.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.19 : 3,179.42 = 1,023.59 : x
2. Step 2: Convert to fraction form
   2,119.19/3,179.42 = 1,023.59/x
3. Step 3: Cross multiply
   2,119.19x = 3,179.42 × 1,023.59
4. Step 4: Simplify right side
   2,119.19x = 3,254,401.50
5. Step 5: Solve for x
   x = 3,254,401.50/2,119.19
6. Step 6: Final answer
   x = 1,535.69