Finding the Fourth Proportional to 2,128.98, 2,938.17 and 1,184.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128.98 : 2,938.17 = 1,184.96 : x
2. Step 2: Convert to fraction form
   2,128.98/2,938.17 = 1,184.96/x
3. Step 3: Cross multiply
   2,128.98x = 2,938.17 × 1,184.96
4. Step 4: Simplify right side
   2,128.98x = 3,481,625.71
5. Step 5: Solve for x
   x = 3,481,625.71/2,128.98
6. Step 6: Final answer
   x = 1,635.35