Finding the Fourth Proportional to 2,123.04, 2,929.30 and 1,336.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.04 : 2,929.30 = 1,336.60 : x
2. Step 2: Convert to fraction form
   2,123.04/2,929.30 = 1,336.60/x
3. Step 3: Cross multiply
   2,123.04x = 2,929.30 × 1,336.60
4. Step 4: Simplify right side
   2,123.04x = 3,915,302.38
5. Step 5: Solve for x
   x = 3,915,302.38/2,123.04
6. Step 6: Final answer
   x = 1,844.20