Finding the Fourth Proportional to 5,870.72, 8,800.56 and 1,972.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,870.72 : 8,800.56 = 1,972.40 : x
2. Step 2: Convert to fraction form
   5,870.72/8,800.56 = 1,972.40/x
3. Step 3: Cross multiply
   5,870.72x = 8,800.56 × 1,972.40
4. Step 4: Simplify right side
   5,870.72x = 17,358,180.54
5. Step 5: Solve for x
   x = 17,358,180.54/5,870.72
6. Step 6: Final answer
   x = 2,956.74