Finding the Fourth Proportional to 1,845.86, 2,766.05 and 1,153.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,845.86 : 2,766.05 = 1,153.31 : x
2. Step 2: Convert to fraction form
   1,845.86/2,766.05 = 1,153.31/x
3. Step 3: Cross multiply
   1,845.86x = 2,766.05 × 1,153.31
4. Step 4: Simplify right side
   1,845.86x = 3,190,097.85
5. Step 5: Solve for x
   x = 3,190,097.85/1,845.86
6. Step 6: Final answer
   x = 1,728.25