Finding the Fourth Proportional to 2,707.72, 3,736.83 and 1,528.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.72 : 3,736.83 = 1,528.72 : x
2. Step 2: Convert to fraction form
   2,707.72/3,736.83 = 1,528.72/x
3. Step 3: Cross multiply
   2,707.72x = 3,736.83 × 1,528.72
4. Step 4: Simplify right side
   2,707.72x = 5,712,566.76
5. Step 5: Solve for x
   x = 5,712,566.76/2,707.72
6. Step 6: Final answer
   x = 2,109.73