Finding the Fourth Proportional to 2,607.63, 3,599.72 and 1,664.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.63 : 3,599.72 = 1,664.70 : x
2. Step 2: Convert to fraction form
   2,607.63/3,599.72 = 1,664.70/x
3. Step 3: Cross multiply
   2,607.63x = 3,599.72 × 1,664.70
4. Step 4: Simplify right side
   2,607.63x = 5,992,445.56
5. Step 5: Solve for x
   x = 5,992,445.56/2,607.63
6. Step 6: Final answer
   x = 2,298.04