Finding the Fourth Proportional to 2,791.16, 4,186.46 and 1,403.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,791.16 : 4,186.46 = 1,403.93 : x
2. Step 2: Convert to fraction form
   2,791.16/4,186.46 = 1,403.93/x
3. Step 3: Cross multiply
   2,791.16x = 4,186.46 × 1,403.93
4. Step 4: Simplify right side
   2,791.16x = 5,877,500.23
5. Step 5: Solve for x
   x = 5,877,500.23/2,791.16
6. Step 6: Final answer
   x = 2,105.75