Finding the Fourth Proportional to 2,129.56, 2,938.82 and 1,185.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129.56 : 2,938.82 = 1,185.37 : x
2. Step 2: Convert to fraction form
   2,129.56/2,938.82 = 1,185.37/x
3. Step 3: Cross multiply
   2,129.56x = 2,938.82 × 1,185.37
4. Step 4: Simplify right side
   2,129.56x = 3,483,575.79
5. Step 5: Solve for x
   x = 3,483,575.79/2,129.56
6. Step 6: Final answer
   x = 1,635.82