Finding the Fourth Proportional to 1,507.35, 2,080.31 and 1,154.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.35 : 2,080.31 = 1,154.19 : x
2. Step 2: Convert to fraction form
   1,507.35/2,080.31 = 1,154.19/x
3. Step 3: Cross multiply
   1,507.35x = 2,080.31 × 1,154.19
4. Step 4: Simplify right side
   1,507.35x = 2,401,067.23
5. Step 5: Solve for x
   x = 2,401,067.23/1,507.35
6. Step 6: Final answer
   x = 1,592.91