Finding the Fourth Proportional to 1,066.63, 1,473.18 and 711.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.63 : 1,473.18 = 711.94 : x
2. Step 2: Convert to fraction form
   1,066.63/1,473.18 = 711.94/x
3. Step 3: Cross multiply
   1,066.63x = 1,473.18 × 711.94
4. Step 4: Simplify right side
   1,066.63x = 1,048,815.77
5. Step 5: Solve for x
   x = 1,048,815.77/1,066.63
6. Step 6: Final answer
   x = 983.30