Finding the Fourth Proportional to 1,367.83, 1,887.72 and 1,118.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.83 : 1,887.72 = 1,118.45 : x
2. Step 2: Convert to fraction form
   1,367.83/1,887.72 = 1,118.45/x
3. Step 3: Cross multiply
   1,367.83x = 1,887.72 × 1,118.45
4. Step 4: Simplify right side
   1,367.83x = 2,111,305.40
5. Step 5: Solve for x
   x = 2,111,305.40/1,367.83
6. Step 6: Final answer
   x = 1,543.55