Finding the Fourth Proportional to 1,972.89, 2,956.71 and 739.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,972.89 : 2,956.71 = 739.06 : x
2. Step 2: Convert to fraction form
   1,972.89/2,956.71 = 739.06/x
3. Step 3: Cross multiply
   1,972.89x = 2,956.71 × 739.06
4. Step 4: Simplify right side
   1,972.89x = 2,185,186.09
5. Step 5: Solve for x
   x = 2,185,186.09/1,972.89
6. Step 6: Final answer
   x = 1,107.61