Finding the Fourth Proportional to 1,667.94, 2,499.86 and 1,181.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.94 : 2,499.86 = 1,181.12 : x
2. Step 2: Convert to fraction form
   1,667.94/2,499.86 = 1,181.12/x
3. Step 3: Cross multiply
   1,667.94x = 2,499.86 × 1,181.12
4. Step 4: Simplify right side
   1,667.94x = 2,952,634.64
5. Step 5: Solve for x
   x = 2,952,634.64/1,667.94
6. Step 6: Final answer
   x = 1,770.23