Finding the Fourth Proportional to 1,190.93, 1,644.06 and 693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,190.93 : 1,644.06 = 693.50 : x
2. Step 2: Convert to fraction form
   1,190.93/1,644.06 = 693.50/x
3. Step 3: Cross multiply
   1,190.93x = 1,644.06 × 693.50
4. Step 4: Simplify right side
   1,190.93x = 1,140,155.61
5. Step 5: Solve for x
   x = 1,140,155.61/1,190.93
6. Step 6: Final answer
   x = 957.37