Finding the Fourth Proportional to 1,905.84, 2,861.86 and 1,180.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,905.84 : 2,861.86 = 1,180.04 : x
2. Step 2: Convert to fraction form
   1,905.84/2,861.86 = 1,180.04/x
3. Step 3: Cross multiply
   1,905.84x = 2,861.86 × 1,180.04
4. Step 4: Simplify right side
   1,905.84x = 3,377,109.27
5. Step 5: Solve for x
   x = 3,377,109.27/1,905.84
6. Step 6: Final answer
   x = 1,771.98