Finding the Fourth Proportional to 1,681.18, 2,320.14 and 1,018.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681.18 : 2,320.14 = 1,018.06 : x
2. Step 2: Convert to fraction form
   1,681.18/2,320.14 = 1,018.06/x
3. Step 3: Cross multiply
   1,681.18x = 2,320.14 × 1,018.06
4. Step 4: Simplify right side
   1,681.18x = 2,362,041.73
5. Step 5: Solve for x
   x = 2,362,041.73/1,681.18
6. Step 6: Final answer
   x = 1,404.99