Finding the Fourth Proportional to 1,673.58, 2,508.56 and 747.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.58 : 2,508.56 = 747.86 : x
2. Step 2: Convert to fraction form
   1,673.58/2,508.56 = 747.86/x
3. Step 3: Cross multiply
   1,673.58x = 2,508.56 × 747.86
4. Step 4: Simplify right side
   1,673.58x = 1,876,054.21
5. Step 5: Solve for x
   x = 1,876,054.21/1,673.58
6. Step 6: Final answer
   x = 1,120.98