Finding the Fourth Proportional to 2,749.86, 4,118.60 and 2,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,749.86 : 4,118.60 = 2,090.72 : x
2. Step 2: Convert to fraction form
   2,749.86/4,118.60 = 2,090.72/x
3. Step 3: Cross multiply
   2,749.86x = 4,118.60 × 2,090.72
4. Step 4: Simplify right side
   2,749.86x = 8,610,839.39
5. Step 5: Solve for x
   x = 8,610,839.39/2,749.86
6. Step 6: Final answer
   x = 3,131.37