Finding the Fourth Proportional to 2,111.95, 2,914.49 and 1,180.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.95 : 2,914.49 = 1,180.45 : x
2. Step 2: Convert to fraction form
   2,111.95/2,914.49 = 1,180.45/x
3. Step 3: Cross multiply
   2,111.95x = 2,914.49 × 1,180.45
4. Step 4: Simplify right side
   2,111.95x = 3,440,409.72
5. Step 5: Solve for x
   x = 3,440,409.72/2,111.95
6. Step 6: Final answer
   x = 1,629.02