Finding the Fourth Proportional to 1,071.37, 1,605.74 and 632.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.37 : 1,605.74 = 632.18 : x
2. Step 2: Convert to fraction form
   1,071.37/1,605.74 = 632.18/x
3. Step 3: Cross multiply
   1,071.37x = 1,605.74 × 632.18
4. Step 4: Simplify right side
   1,071.37x = 1,015,113.94
5. Step 5: Solve for x
   x = 1,015,113.94/1,071.37
6. Step 6: Final answer
   x = 947.49