Finding the Fourth Proportional to 1,659.69, 2,289.06 and 1,547.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.69 : 2,289.06 = 1,547.91 : x
2. Step 2: Convert to fraction form
   1,659.69/2,289.06 = 1,547.91/x
3. Step 3: Cross multiply
   1,659.69x = 2,289.06 × 1,547.91
4. Step 4: Simplify right side
   1,659.69x = 3,543,258.86
5. Step 5: Solve for x
   x = 3,543,258.86/1,659.69
6. Step 6: Final answer
   x = 2,134.89