Finding the Fourth Proportional to 3,164.79, 4,747.74 and 1,085.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,164.79 : 4,747.74 = 1,085.01 : x
2. Step 2: Convert to fraction form
   3,164.79/4,747.74 = 1,085.01/x
3. Step 3: Cross multiply
   3,164.79x = 4,747.74 × 1,085.01
4. Step 4: Simplify right side
   3,164.79x = 5,151,345.38
5. Step 5: Solve for x
   x = 5,151,345.38/3,164.79
6. Step 6: Final answer
   x = 1,627.71