Finding the Fourth Proportional to 1,865.15, 2,792.33 and 1,404.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.15 : 2,792.33 = 1,404.87 : x
2. Step 2: Convert to fraction form
   1,865.15/2,792.33 = 1,404.87/x
3. Step 3: Cross multiply
   1,865.15x = 2,792.33 × 1,404.87
4. Step 4: Simplify right side
   1,865.15x = 3,922,853.62
5. Step 5: Solve for x
   x = 3,922,853.62/1,865.15
6. Step 6: Final answer
   x = 2,103.23