Finding the Fourth Proportional to 2,129.30, 2,938.34 and 1,185.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129.30 : 2,938.34 = 1,185.02 : x
2. Step 2: Convert to fraction form
   2,129.30/2,938.34 = 1,185.02/x
3. Step 3: Cross multiply
   2,129.30x = 2,938.34 × 1,185.02
4. Step 4: Simplify right side
   2,129.30x = 3,481,991.67
5. Step 5: Solve for x
   x = 3,481,991.67/2,129.30
6. Step 6: Final answer
   x = 1,635.28