Finding the Fourth Proportional to 2,123.22, 2,930.88 and 1,337.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.22 : 2,930.88 = 1,337.12 : x
2. Step 2: Convert to fraction form
   2,123.22/2,930.88 = 1,337.12/x
3. Step 3: Cross multiply
   2,123.22x = 2,930.88 × 1,337.12
4. Step 4: Simplify right side
   2,123.22x = 3,918,938.27
5. Step 5: Solve for x
   x = 3,918,938.27/2,123.22
6. Step 6: Final answer
   x = 1,845.75