Finding the Fourth Proportional to 1,667.98, 2,500.35 and 693.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.98 : 2,500.35 = 693.55 : x
2. Step 2: Convert to fraction form
   1,667.98/2,500.35 = 693.55/x
3. Step 3: Cross multiply
   1,667.98x = 2,500.35 × 693.55
4. Step 4: Simplify right side
   1,667.98x = 1,734,117.74
5. Step 5: Solve for x
   x = 1,734,117.74/1,667.98
6. Step 6: Final answer
   x = 1,039.65