Finding the Fourth Proportional to 1,179.72, 1,767.42 and 632.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,179.72 : 1,767.42 = 632.16 : x
2. Step 2: Convert to fraction form
   1,179.72/1,767.42 = 632.16/x
3. Step 3: Cross multiply
   1,179.72x = 1,767.42 × 632.16
4. Step 4: Simplify right side
   1,179.72x = 1,117,292.23
5. Step 5: Solve for x
   x = 1,117,292.23/1,179.72
6. Step 6: Final answer
   x = 947.08