Finding the Fourth Proportional to 1,945.88, 2,684.90 and 1,160.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.88 : 2,684.90 = 1,160.12 : x
2. Step 2: Convert to fraction form
   1,945.88/2,684.90 = 1,160.12/x
3. Step 3: Cross multiply
   1,945.88x = 2,684.90 × 1,160.12
4. Step 4: Simplify right side
   1,945.88x = 3,114,806.19
5. Step 5: Solve for x
   x = 3,114,806.19/1,945.88
6. Step 6: Final answer
   x = 1,600.72