Finding the Fourth Proportional to 1,945.86, 2,685.33 and 1,106.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.86 : 2,685.33 = 1,106.60 : x
2. Step 2: Convert to fraction form
   1,945.86/2,685.33 = 1,106.60/x
3. Step 3: Cross multiply
   1,945.86x = 2,685.33 × 1,106.60
4. Step 4: Simplify right side
   1,945.86x = 2,971,586.18
5. Step 5: Solve for x
   x = 2,971,586.18/1,945.86
6. Step 6: Final answer
   x = 1,527.13