Finding the Fourth Proportional to 2,792.60, 4,185.84 and 1,403.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,792.60 : 4,185.84 = 1,403.72 : x
2. Step 2: Convert to fraction form
   2,792.60/4,185.84 = 1,403.72/x
3. Step 3: Cross multiply
   2,792.60x = 4,185.84 × 1,403.72
4. Step 4: Simplify right side
   2,792.60x = 5,875,747.32
5. Step 5: Solve for x
   x = 5,875,747.32/2,792.60
6. Step 6: Final answer
   x = 2,104.04