Finding the Fourth Proportional to 1,665.56, 2,494.44 and 1,316.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.56 : 2,494.44 = 1,316.55 : x
2. Step 2: Convert to fraction form
   1,665.56/2,494.44 = 1,316.55/x
3. Step 3: Cross multiply
   1,665.56x = 2,494.44 × 1,316.55
4. Step 4: Simplify right side
   1,665.56x = 3,284,054.98
5. Step 5: Solve for x
   x = 3,284,054.98/1,665.56
6. Step 6: Final answer
   x = 1,971.74