Finding the Fourth Proportional to 1,862.70, 2,570.42 and 1,367.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,862.70 : 2,570.42 = 1,367.42 : x
2. Step 2: Convert to fraction form
   1,862.70/2,570.42 = 1,367.42/x
3. Step 3: Cross multiply
   1,862.70x = 2,570.42 × 1,367.42
4. Step 4: Simplify right side
   1,862.70x = 3,514,843.72
5. Step 5: Solve for x
   x = 3,514,843.72/1,862.70
6. Step 6: Final answer
   x = 1,886.96