Finding the Fourth Proportional to 2,610.35, 3,917.72 and 1,377.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.35 : 3,917.72 = 1,377.12 : x
2. Step 2: Convert to fraction form
   2,610.35/3,917.72 = 1,377.12/x
3. Step 3: Cross multiply
   2,610.35x = 3,917.72 × 1,377.12
4. Step 4: Simplify right side
   2,610.35x = 5,395,174.01
5. Step 5: Solve for x
   x = 5,395,174.01/2,610.35
6. Step 6: Final answer
   x = 2,066.84