Finding the Fourth Proportional to 2,101.49, 2,900.23 and 1,157.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.49 : 2,900.23 = 1,157.47 : x
2. Step 2: Convert to fraction form
   2,101.49/2,900.23 = 1,157.47/x
3. Step 3: Cross multiply
   2,101.49x = 2,900.23 × 1,157.47
4. Step 4: Simplify right side
   2,101.49x = 3,356,929.22
5. Step 5: Solve for x
   x = 3,356,929.22/2,101.49
6. Step 6: Final answer
   x = 1,597.40