Finding the Fourth Proportional to 1,190.50, 1,643.01 and 693.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,190.50 : 1,643.01 = 693.37 : x
2. Step 2: Convert to fraction form
   1,190.50/1,643.01 = 693.37/x
3. Step 3: Cross multiply
   1,190.50x = 1,643.01 × 693.37
4. Step 4: Simplify right side
   1,190.50x = 1,139,205.63
5. Step 5: Solve for x
   x = 1,139,205.63/1,190.50
6. Step 6: Final answer
   x = 956.92