Finding the Fourth Proportional to 1,018.76, 1,405.54 and 599.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018.76 : 1,405.54 = 599.01 : x
2. Step 2: Convert to fraction form
   1,018.76/1,405.54 = 599.01/x
3. Step 3: Cross multiply
   1,018.76x = 1,405.54 × 599.01
4. Step 4: Simplify right side
   1,018.76x = 841,932.53
5. Step 5: Solve for x
   x = 841,932.53/1,018.76
6. Step 6: Final answer
   x = 826.43