Finding the Fourth Proportional to 2,612.08, 3,914.72 and 1,993.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.08 : 3,914.72 = 1,993.52 : x
2. Step 2: Convert to fraction form
   2,612.08/3,914.72 = 1,993.52/x
3. Step 3: Cross multiply
   2,612.08x = 3,914.72 × 1,993.52
4. Step 4: Simplify right side
   2,612.08x = 7,804,072.61
5. Step 5: Solve for x
   x = 7,804,072.61/2,612.08
6. Step 6: Final answer
   x = 2,987.69