Finding the Fourth Proportional to 2,043.10, 3,065.10 and 947.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.10 : 3,065.10 = 947.20 : x
2. Step 2: Convert to fraction form
   2,043.10/3,065.10 = 947.20/x
3. Step 3: Cross multiply
   2,043.10x = 3,065.10 × 947.20
4. Step 4: Simplify right side
   2,043.10x = 2,903,262.72
5. Step 5: Solve for x
   x = 2,903,262.72/2,043.10
6. Step 6: Final answer
   x = 1,421.01