Finding the Fourth Proportional to 2,621.52, 3,617.91 and 1,442.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,621.52 : 3,617.91 = 1,442.70 : x
2. Step 2: Convert to fraction form
   2,621.52/3,617.91 = 1,442.70/x
3. Step 3: Cross multiply
   2,621.52x = 3,617.91 × 1,442.70
4. Step 4: Simplify right side
   2,621.52x = 5,219,558.76
5. Step 5: Solve for x
   x = 5,219,558.76/2,621.52
6. Step 6: Final answer
   x = 1,991.04