Finding the Fourth Proportional to 2,415.50, 3,624.72 and 1,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,415.50 : 3,624.72 = 1,047.50 : x
2. Step 2: Convert to fraction form
   2,415.50/3,624.72 = 1,047.50/x
3. Step 3: Cross multiply
   2,415.50x = 3,624.72 × 1,047.50
4. Step 4: Simplify right side
   2,415.50x = 3,796,894.20
5. Step 5: Solve for x
   x = 3,796,894.20/2,415.50
6. Step 6: Final answer
   x = 1,571.89