Finding the Fourth Proportional to 2,123.20, 2,930.52 and 1,337.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.20 : 2,930.52 = 1,337.14 : x
2. Step 2: Convert to fraction form
   2,123.20/2,930.52 = 1,337.14/x
3. Step 3: Cross multiply
   2,123.20x = 2,930.52 × 1,337.14
4. Step 4: Simplify right side
   2,123.20x = 3,918,515.51
5. Step 5: Solve for x
   x = 3,918,515.51/2,123.20
6. Step 6: Final answer
   x = 1,845.57