Finding the Fourth Proportional to 2,970.28, 4,454.52 and 1,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,970.28 : 4,454.52 = 1,238.50 : x
2. Step 2: Convert to fraction form
   2,970.28/4,454.52 = 1,238.50/x
3. Step 3: Cross multiply
   2,970.28x = 4,454.52 × 1,238.50
4. Step 4: Simplify right side
   2,970.28x = 5,516,923.02
5. Step 5: Solve for x
   x = 5,516,923.02/2,970.28
6. Step 6: Final answer
   x = 1,857.37