Finding the Fourth Proportional to 3,518.02, 5,272.98 and 1,667.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,518.02 : 5,272.98 = 1,667.98 : x
2. Step 2: Convert to fraction form
   3,518.02/5,272.98 = 1,667.98/x
3. Step 3: Cross multiply
   3,518.02x = 5,272.98 × 1,667.98
4. Step 4: Simplify right side
   3,518.02x = 8,795,225.18
5. Step 5: Solve for x
   x = 8,795,225.18/3,518.02
6. Step 6: Final answer
   x = 2,500.05