Finding the Fourth Proportional to 1,665.17, 2,495.76 and 739.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.17 : 2,495.76 = 739.69 : x
2. Step 2: Convert to fraction form
   1,665.17/2,495.76 = 739.69/x
3. Step 3: Cross multiply
   1,665.17x = 2,495.76 × 739.69
4. Step 4: Simplify right side
   1,665.17x = 1,846,076.24
5. Step 5: Solve for x
   x = 1,846,076.24/1,665.17
6. Step 6: Final answer
   x = 1,108.64