Finding the Fourth Proportional to 1,667.61, 2,299.86 and 1,419.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.61 : 2,299.86 = 1,419.75 : x
2. Step 2: Convert to fraction form
   1,667.61/2,299.86 = 1,419.75/x
3. Step 3: Cross multiply
   1,667.61x = 2,299.86 × 1,419.75
4. Step 4: Simplify right side
   1,667.61x = 3,265,226.24
5. Step 5: Solve for x
   x = 3,265,226.24/1,667.61
6. Step 6: Final answer
   x = 1,958.03