Finding the Fourth Proportional to 1,667.84, 2,502.66 and 1,406.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.84 : 2,502.66 = 1,406.60 : x
2. Step 2: Convert to fraction form
   1,667.84/2,502.66 = 1,406.60/x
3. Step 3: Cross multiply
   1,667.84x = 2,502.66 × 1,406.60
4. Step 4: Simplify right side
   1,667.84x = 3,520,241.56
5. Step 5: Solve for x
   x = 3,520,241.56/1,667.84
6. Step 6: Final answer
   x = 2,110.66