Finding the Fourth Proportional to 1,624.24, 2,433.57 and 1,279.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,624.24 : 2,433.57 = 1,279.78 : x
2. Step 2: Convert to fraction form
   1,624.24/2,433.57 = 1,279.78/x
3. Step 3: Cross multiply
   1,624.24x = 2,433.57 × 1,279.78
4. Step 4: Simplify right side
   1,624.24x = 3,114,434.21
5. Step 5: Solve for x
   x = 3,114,434.21/1,624.24
6. Step 6: Final answer
   x = 1,917.47