Finding the Fourth Proportional to 1,066.63, 1,471.83 and 612.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.63 : 1,471.83 = 612.37 : x
2. Step 2: Convert to fraction form
   1,066.63/1,471.83 = 612.37/x
3. Step 3: Cross multiply
   1,066.63x = 1,471.83 × 612.37
4. Step 4: Simplify right side
   1,066.63x = 901,304.54
5. Step 5: Solve for x
   x = 901,304.54/1,066.63
6. Step 6: Final answer
   x = 845.00