Finding the Fourth Proportional to 1,507.29, 2,077.91 and 1,108.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.29 : 2,077.91 = 1,108.25 : x
2. Step 2: Convert to fraction form
   1,507.29/2,077.91 = 1,108.25/x
3. Step 3: Cross multiply
   1,507.29x = 2,077.91 × 1,108.25
4. Step 4: Simplify right side
   1,507.29x = 2,302,833.37
5. Step 5: Solve for x
   x = 2,302,833.37/1,507.29
6. Step 6: Final answer
   x = 1,527.80