Finding the Fourth Proportional to 2,974.48, 4,457.40 and 1,330.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,974.48 : 4,457.40 = 1,330.72 : x
2. Step 2: Convert to fraction form
   2,974.48/4,457.40 = 1,330.72/x
3. Step 3: Cross multiply
   2,974.48x = 4,457.40 × 1,330.72
4. Step 4: Simplify right side
   2,974.48x = 5,931,551.33
5. Step 5: Solve for x
   x = 5,931,551.33/2,974.48
6. Step 6: Final answer
   x = 1,994.15