Finding the Fourth Proportional to 1,933.10, 2,667.67 and 1,187.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,933.10 : 2,667.67 = 1,187.04 : x
2. Step 2: Convert to fraction form
   1,933.10/2,667.67 = 1,187.04/x
3. Step 3: Cross multiply
   1,933.10x = 2,667.67 × 1,187.04
4. Step 4: Simplify right side
   1,933.10x = 3,166,631.00
5. Step 5: Solve for x
   x = 3,166,631.00/1,933.10
6. Step 6: Final answer
   x = 1,638.11