Finding the Fourth Proportional to 3,947.04, 5,922.72 and 2,970.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947.04 : 5,922.72 = 2,970.72 : x
2. Step 2: Convert to fraction form
   3,947.04/5,922.72 = 2,970.72/x
3. Step 3: Cross multiply
   3,947.04x = 5,922.72 × 2,970.72
4. Step 4: Simplify right side
   3,947.04x = 17,594,742.76
5. Step 5: Solve for x
   x = 17,594,742.76/3,947.04
6. Step 6: Final answer
   x = 4,457.71