Finding the Fourth Proportional to 1,665.35, 2,498.61 and 740.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.35 : 2,498.61 = 740.82 : x
2. Step 2: Convert to fraction form
   1,665.35/2,498.61 = 740.82/x
3. Step 3: Cross multiply
   1,665.35x = 2,498.61 × 740.82
4. Step 4: Simplify right side
   1,665.35x = 1,851,032.41
5. Step 5: Solve for x
   x = 1,851,032.41/1,665.35
6. Step 6: Final answer
   x = 1,111.50