Finding the Fourth Proportional to 1,013.58, 1,398.74 and 547.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,013.58 : 1,398.74 = 547.83 : x
2. Step 2: Convert to fraction form
   1,013.58/1,398.74 = 547.83/x
3. Step 3: Cross multiply
   1,013.58x = 1,398.74 × 547.83
4. Step 4: Simplify right side
   1,013.58x = 766,268.43
5. Step 5: Solve for x
   x = 766,268.43/1,013.58
6. Step 6: Final answer
   x = 756.00