Finding the Fourth Proportional to 1,369.52, 1,885.56 and 1,108.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.52 : 1,885.56 = 1,108.40 : x
2. Step 2: Convert to fraction form
   1,369.52/1,885.56 = 1,108.40/x
3. Step 3: Cross multiply
   1,369.52x = 1,885.56 × 1,108.40
4. Step 4: Simplify right side
   1,369.52x = 2,089,954.70
5. Step 5: Solve for x
   x = 2,089,954.70/1,369.52
6. Step 6: Final answer
   x = 1,526.05