Finding the Fourth Proportional to 2,707.72, 3,736.59 and 1,528.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,707.72 : 3,736.59 = 1,528.76 : x
2. Step 2: Convert to fraction form
   2,707.72/3,736.59 = 1,528.76/x
3. Step 3: Cross multiply
   2,707.72x = 3,736.59 × 1,528.76
4. Step 4: Simplify right side
   2,707.72x = 5,712,349.33
5. Step 5: Solve for x
   x = 5,712,349.33/2,707.72
6. Step 6: Final answer
   x = 2,109.65