Finding the Fourth Proportional to 1,665.82, 2,501.52 and 1,599.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.82 : 2,501.52 = 1,599.60 : x
2. Step 2: Convert to fraction form
   1,665.82/2,501.52 = 1,599.60/x
3. Step 3: Cross multiply
   1,665.82x = 2,501.52 × 1,599.60
4. Step 4: Simplify right side
   1,665.82x = 4,001,423.39
5. Step 5: Solve for x
   x = 4,001,423.39/1,665.82
6. Step 6: Final answer
   x = 2,402.07