Finding the Fourth Proportional to 978.51, 1,350.33 and 536.37

Step by Step Solution

1. Step 1: Write the proportion equation
   978.51 : 1,350.33 = 536.37 : x
2. Step 2: Convert to fraction form
   978.51/1,350.33 = 536.37/x
3. Step 3: Cross multiply
   978.51x = 1,350.33 × 536.37
4. Step 4: Simplify right side
   978.51x = 724,276.50
5. Step 5: Solve for x
   x = 724,276.50/978.51
6. Step 6: Final answer
   x = 740.18