Finding the Fourth Proportional to 2,364.78, 3,538.64 and 1,440.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,364.78 : 3,538.64 = 1,440.56 : x
2. Step 2: Convert to fraction form
   2,364.78/3,538.64 = 1,440.56/x
3. Step 3: Cross multiply
   2,364.78x = 3,538.64 × 1,440.56
4. Step 4: Simplify right side
   2,364.78x = 5,097,623.24
5. Step 5: Solve for x
   x = 5,097,623.24/2,364.78
6. Step 6: Final answer
   x = 2,155.64