Finding the Fourth Proportional to 1,889.28, 2,606.33 and 1,180.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.28 : 2,606.33 = 1,180.67 : x
2. Step 2: Convert to fraction form
   1,889.28/2,606.33 = 1,180.67/x
3. Step 3: Cross multiply
   1,889.28x = 2,606.33 × 1,180.67
4. Step 4: Simplify right side
   1,889.28x = 3,077,196.71
5. Step 5: Solve for x
   x = 3,077,196.71/1,889.28
6. Step 6: Final answer
   x = 1,628.77