Finding the Fourth Proportional to 1,955.12, 2,697.89 and 1,199.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,955.12 : 2,697.89 = 1,199.31 : x
2. Step 2: Convert to fraction form
   1,955.12/2,697.89 = 1,199.31/x
3. Step 3: Cross multiply
   1,955.12x = 2,697.89 × 1,199.31
4. Step 4: Simplify right side
   1,955.12x = 3,235,619.57
5. Step 5: Solve for x
   x = 3,235,619.57/1,955.12
6. Step 6: Final answer
   x = 1,654.95