Finding the Fourth Proportional to 2,773.98, 4,161.51 and 1,387.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.98 : 4,161.51 = 1,387.62 : x
2. Step 2: Convert to fraction form
   2,773.98/4,161.51 = 1,387.62/x
3. Step 3: Cross multiply
   2,773.98x = 4,161.51 × 1,387.62
4. Step 4: Simplify right side
   2,773.98x = 5,774,594.51
5. Step 5: Solve for x
   x = 5,774,594.51/2,773.98
6. Step 6: Final answer
   x = 2,081.70