Finding the Fourth Proportional to 1,945.89, 2,685.29 and 1,106.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.89 : 2,685.29 = 1,106.19 : x
2. Step 2: Convert to fraction form
   1,945.89/2,685.29 = 1,106.19/x
3. Step 3: Cross multiply
   1,945.89x = 2,685.29 × 1,106.19
4. Step 4: Simplify right side
   1,945.89x = 2,970,435.41
5. Step 5: Solve for x
   x = 2,970,435.41/1,945.89
6. Step 6: Final answer
   x = 1,526.52