Finding the Fourth Proportional to 4,851.06, 7,275.78 and 1,387.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,851.06 : 7,275.78 = 1,387.50 : x
2. Step 2: Convert to fraction form
   4,851.06/7,275.78 = 1,387.50/x
3. Step 3: Cross multiply
   4,851.06x = 7,275.78 × 1,387.50
4. Step 4: Simplify right side
   4,851.06x = 10,095,144.75
5. Step 5: Solve for x
   x = 10,095,144.75/4,851.06
6. Step 6: Final answer
   x = 2,081.02