Finding the Fourth Proportional to 1,541.10, 2,308.68 and 889.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,541.10 : 2,308.68 = 889.86 : x
2. Step 2: Convert to fraction form
   1,541.10/2,308.68 = 889.86/x
3. Step 3: Cross multiply
   1,541.10x = 2,308.68 × 889.86
4. Step 4: Simplify right side
   1,541.10x = 2,054,401.98
5. Step 5: Solve for x
   x = 2,054,401.98/1,541.10
6. Step 6: Final answer
   x = 1,333.08