Finding the Fourth Proportional to 2,947.03, 4,066.83 and 1,620.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,947.03 : 4,066.83 = 1,620.72 : x
2. Step 2: Convert to fraction form
   2,947.03/4,066.83 = 1,620.72/x
3. Step 3: Cross multiply
   2,947.03x = 4,066.83 × 1,620.72
4. Step 4: Simplify right side
   2,947.03x = 6,591,192.72
5. Step 5: Solve for x
   x = 6,591,192.72/2,947.03
6. Step 6: Final answer
   x = 2,236.56