Finding the Fourth Proportional to 1,377.69, 1,899.82 and 1,179.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.69 : 1,899.82 = 1,179.18 : x
2. Step 2: Convert to fraction form
   1,377.69/1,899.82 = 1,179.18/x
3. Step 3: Cross multiply
   1,377.69x = 1,899.82 × 1,179.18
4. Step 4: Simplify right side
   1,377.69x = 2,240,238.35
5. Step 5: Solve for x
   x = 2,240,238.35/1,377.69
6. Step 6: Final answer
   x = 1,626.08