Finding the Fourth Proportional to 2,043.72, 3,064.21 and 947.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,043.72 : 3,064.21 = 947.49 : x
2. Step 2: Convert to fraction form
   2,043.72/3,064.21 = 947.49/x
3. Step 3: Cross multiply
   2,043.72x = 3,064.21 × 947.49
4. Step 4: Simplify right side
   2,043.72x = 2,903,308.33
5. Step 5: Solve for x
   x = 2,903,308.33/2,043.72
6. Step 6: Final answer
   x = 1,420.60