Finding the Fourth Proportional to 7,152.60, 10,728.89 and 1,958.48

Step by Step Solution

1. Step 1: Write the proportion equation
   7,152.60 : 10,728.89 = 1,958.48 : x
2. Step 2: Convert to fraction form
   7,152.60/10,728.89 = 1,958.48/x
3. Step 3: Cross multiply
   7,152.60x = 10,728.89 × 1,958.48
4. Step 4: Simplify right side
   7,152.60x = 21,012,300.63
5. Step 5: Solve for x
   x = 21,012,300.63/7,152.60
6. Step 6: Final answer
   x = 2,937.71