Finding the Fourth Proportional to 2,102.44, 2,901.32 and 1,158.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.44 : 2,901.32 = 1,158.10 : x
2. Step 2: Convert to fraction form
   2,102.44/2,901.32 = 1,158.10/x
3. Step 3: Cross multiply
   2,102.44x = 2,901.32 × 1,158.10
4. Step 4: Simplify right side
   2,102.44x = 3,360,018.69
5. Step 5: Solve for x
   x = 3,360,018.69/2,102.44
6. Step 6: Final answer
   x = 1,598.15