Finding the Fourth Proportional to 1,709.72, 2,355.24 and 1,488.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709.72 : 2,355.24 = 1,488.28 : x
2. Step 2: Convert to fraction form
   1,709.72/2,355.24 = 1,488.28/x
3. Step 3: Cross multiply
   1,709.72x = 2,355.24 × 1,488.28
4. Step 4: Simplify right side
   1,709.72x = 3,505,256.59
5. Step 5: Solve for x
   x = 3,505,256.59/1,709.72
6. Step 6: Final answer
   x = 2,050.19