Finding the Fourth Proportional to 1,665.02, 2,498.03 and 788.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.02 : 2,498.03 = 788.19 : x
2. Step 2: Convert to fraction form
   1,665.02/2,498.03 = 788.19/x
3. Step 3: Cross multiply
   1,665.02x = 2,498.03 × 788.19
4. Step 4: Simplify right side
   1,665.02x = 1,968,922.27
5. Step 5: Solve for x
   x = 1,968,922.27/1,665.02
6. Step 6: Final answer
   x = 1,182.52