Finding the Fourth Proportional to 2,047.93, 3,072.29 and 661.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,047.93 : 3,072.29 = 661.61 : x
2. Step 2: Convert to fraction form
   2,047.93/3,072.29 = 661.61/x
3. Step 3: Cross multiply
   2,047.93x = 3,072.29 × 661.61
4. Step 4: Simplify right side
   2,047.93x = 2,032,667.12
5. Step 5: Solve for x
   x = 2,032,667.12/2,047.93
6. Step 6: Final answer
   x = 992.55