Finding the Fourth Proportional to 1,682.16, 2,321.03 and 1,018.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.16 : 2,321.03 = 1,018.88 : x
2. Step 2: Convert to fraction form
   1,682.16/2,321.03 = 1,018.88/x
3. Step 3: Cross multiply
   1,682.16x = 2,321.03 × 1,018.88
4. Step 4: Simplify right side
   1,682.16x = 2,364,834.35
5. Step 5: Solve for x
   x = 2,364,834.35/1,682.16
6. Step 6: Final answer
   x = 1,405.83