Finding the Fourth Proportional to 1,664.10, 2,496.72 and 740.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.10 : 2,496.72 = 740.31 : x
2. Step 2: Convert to fraction form
   1,664.10/2,496.72 = 740.31/x
3. Step 3: Cross multiply
   1,664.10x = 2,496.72 × 740.31
4. Step 4: Simplify right side
   1,664.10x = 1,848,346.78
5. Step 5: Solve for x
   x = 1,848,346.78/1,664.10
6. Step 6: Final answer
   x = 1,110.72