Finding the Fourth Proportional to 1,889.45, 2,606.34 and 1,180.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.45 : 2,606.34 = 1,180.99 : x
2. Step 2: Convert to fraction form
   1,889.45/2,606.34 = 1,180.99/x
3. Step 3: Cross multiply
   1,889.45x = 2,606.34 × 1,180.99
4. Step 4: Simplify right side
   1,889.45x = 3,078,061.48
5. Step 5: Solve for x
   x = 3,078,061.48/1,889.45
6. Step 6: Final answer
   x = 1,629.08