Finding the Fourth Proportional to 1,869.51, 2,801.79 and 1,434.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,869.51 : 2,801.79 = 1,434.54 : x
2. Step 2: Convert to fraction form
   1,869.51/2,801.79 = 1,434.54/x
3. Step 3: Cross multiply
   1,869.51x = 2,801.79 × 1,434.54
4. Step 4: Simplify right side
   1,869.51x = 4,019,279.83
5. Step 5: Solve for x
   x = 4,019,279.83/1,869.51
6. Step 6: Final answer
   x = 2,149.91