Finding the Fourth Proportional to 1,162.63, 1,604.61 and 697.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.63 : 1,604.61 = 697.15 : x
2. Step 2: Convert to fraction form
   1,162.63/1,604.61 = 697.15/x
3. Step 3: Cross multiply
   1,162.63x = 1,604.61 × 697.15
4. Step 4: Simplify right side
   1,162.63x = 1,118,642.35
5. Step 5: Solve for x
   x = 1,118,642.35/1,162.63
6. Step 6: Final answer
   x = 962.17