Finding the Fourth Proportional to 1,782.50, 2,458.69 and 1,118.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.50 : 2,458.69 = 1,118.77 : x
2. Step 2: Convert to fraction form
   1,782.50/2,458.69 = 1,118.77/x
3. Step 3: Cross multiply
   1,782.50x = 2,458.69 × 1,118.77
4. Step 4: Simplify right side
   1,782.50x = 2,750,699.67
5. Step 5: Solve for x
   x = 2,750,699.67/1,782.50
6. Step 6: Final answer
   x = 1,543.17