Finding the Fourth Proportional to 1,669.50, 2,303.91 and 933.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.50 : 2,303.91 = 933.50 : x
2. Step 2: Convert to fraction form
   1,669.50/2,303.91 = 933.50/x
3. Step 3: Cross multiply
   1,669.50x = 2,303.91 × 933.50
4. Step 4: Simplify right side
   1,669.50x = 2,150,699.99
5. Step 5: Solve for x
   x = 2,150,699.99/1,669.50
6. Step 6: Final answer
   x = 1,288.23