Finding the Fourth Proportional to 1,919.59, 2,649.06 and 1,173.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.59 : 2,649.06 = 1,173.39 : x
2. Step 2: Convert to fraction form
   1,919.59/2,649.06 = 1,173.39/x
3. Step 3: Cross multiply
   1,919.59x = 2,649.06 × 1,173.39
4. Step 4: Simplify right side
   1,919.59x = 3,108,370.58
5. Step 5: Solve for x
   x = 3,108,370.58/1,919.59
6. Step 6: Final answer
   x = 1,619.29