Finding the Fourth Proportional to 1,945.35, 2,684.81 and 1,106.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.35 : 2,684.81 = 1,106.31 : x
2. Step 2: Convert to fraction form
   1,945.35/2,684.81 = 1,106.31/x
3. Step 3: Cross multiply
   1,945.35x = 2,684.81 × 1,106.31
4. Step 4: Simplify right side
   1,945.35x = 2,970,244.98
5. Step 5: Solve for x
   x = 2,970,244.98/1,945.35
6. Step 6: Final answer
   x = 1,526.84