Finding the Fourth Proportional to 1,606.64, 2,410.68 and 740.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.64 : 2,410.68 = 740.72 : x
2. Step 2: Convert to fraction form
   1,606.64/2,410.68 = 740.72/x
3. Step 3: Cross multiply
   1,606.64x = 2,410.68 × 740.72
4. Step 4: Simplify right side
   1,606.64x = 1,785,638.89
5. Step 5: Solve for x
   x = 1,785,638.89/1,606.64
6. Step 6: Final answer
   x = 1,111.41