Finding the Fourth Proportional to 2,532.78, 3,495.54 and 1,538.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,532.78 : 3,495.54 = 1,538.40 : x
2. Step 2: Convert to fraction form
   2,532.78/3,495.54 = 1,538.40/x
3. Step 3: Cross multiply
   2,532.78x = 3,495.54 × 1,538.40
4. Step 4: Simplify right side
   2,532.78x = 5,377,538.74
5. Step 5: Solve for x
   x = 5,377,538.74/2,532.78
6. Step 6: Final answer
   x = 2,123.18