Finding the Fourth Proportional to 1,354.98, 1,868.25 and 1,155.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.98 : 1,868.25 = 1,155.78 : x
2. Step 2: Convert to fraction form
   1,354.98/1,868.25 = 1,155.78/x
3. Step 3: Cross multiply
   1,354.98x = 1,868.25 × 1,155.78
4. Step 4: Simplify right side
   1,354.98x = 2,159,285.99
5. Step 5: Solve for x
   x = 2,159,285.99/1,354.98
6. Step 6: Final answer
   x = 1,593.59