Finding the Fourth Proportional to 1,665.95, 2,494.82 and 1,145.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.95 : 2,494.82 = 1,145.18 : x
2. Step 2: Convert to fraction form
   1,665.95/2,494.82 = 1,145.18/x
3. Step 3: Cross multiply
   1,665.95x = 2,494.82 × 1,145.18
4. Step 4: Simplify right side
   1,665.95x = 2,856,999.77
5. Step 5: Solve for x
   x = 2,856,999.77/1,665.95
6. Step 6: Final answer
   x = 1,714.94