Finding the Fourth Proportional to 1,667.62, 2,499.94 and 693.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.62 : 2,499.94 = 693.10 : x
2. Step 2: Convert to fraction form
   1,667.62/2,499.94 = 693.10/x
3. Step 3: Cross multiply
   1,667.62x = 2,499.94 × 693.10
4. Step 4: Simplify right side
   1,667.62x = 1,732,708.41
5. Step 5: Solve for x
   x = 1,732,708.41/1,667.62
6. Step 6: Final answer
   x = 1,039.03