Finding the Fourth Proportional to 1,945.95, 2,685.31 and 1,106.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.95 : 2,685.31 = 1,106.54 : x
2. Step 2: Convert to fraction form
   1,945.95/2,685.31 = 1,106.54/x
3. Step 3: Cross multiply
   1,945.95x = 2,685.31 × 1,106.54
4. Step 4: Simplify right side
   1,945.95x = 2,971,397.39
5. Step 5: Solve for x
   x = 2,971,397.39/1,945.95
6. Step 6: Final answer
   x = 1,526.96