Finding the Fourth Proportional to 1,408.50, 1,941.93 and 1,155.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.50 : 1,941.93 = 1,155.50 : x
2. Step 2: Convert to fraction form
   1,408.50/1,941.93 = 1,155.50/x
3. Step 3: Cross multiply
   1,408.50x = 1,941.93 × 1,155.50
4. Step 4: Simplify right side
   1,408.50x = 2,243,890.41
5. Step 5: Solve for x
   x = 2,243,890.41/1,408.50
6. Step 6: Final answer
   x = 1,593.11