Finding the Fourth Proportional to 2,123.01, 2,929.50 and 1,338.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.01 : 2,929.50 = 1,338.39 : x
2. Step 2: Convert to fraction form
   2,123.01/2,929.50 = 1,338.39/x
3. Step 3: Cross multiply
   2,123.01x = 2,929.50 × 1,338.39
4. Step 4: Simplify right side
   2,123.01x = 3,920,813.51
5. Step 5: Solve for x
   x = 3,920,813.51/2,123.01
6. Step 6: Final answer
   x = 1,846.82