Finding the Fourth Proportional to 1,540.58, 2,308.89 and 1,342.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540.58 : 2,308.89 = 1,342.11 : x
2. Step 2: Convert to fraction form
   1,540.58/2,308.89 = 1,342.11/x
3. Step 3: Cross multiply
   1,540.58x = 2,308.89 × 1,342.11
4. Step 4: Simplify right side
   1,540.58x = 3,098,784.36
5. Step 5: Solve for x
   x = 3,098,784.36/1,540.58
6. Step 6: Final answer
   x = 2,011.45