Finding the Fourth Proportional to 3,612.18, 5,422.59 and 2,152.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,612.18 : 5,422.59 = 2,152.02 : x
2. Step 2: Convert to fraction form
   3,612.18/5,422.59 = 2,152.02/x
3. Step 3: Cross multiply
   3,612.18x = 5,422.59 × 2,152.02
4. Step 4: Simplify right side
   3,612.18x = 11,669,511.37
5. Step 5: Solve for x
   x = 11,669,511.37/3,612.18
6. Step 6: Final answer
   x = 3,230.60