Finding the Fourth Proportional to 2,102.18, 2,900.23 and 1,262.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.18 : 2,900.23 = 1,262.57 : x
2. Step 2: Convert to fraction form
   2,102.18/2,900.23 = 1,262.57/x
3. Step 3: Cross multiply
   2,102.18x = 2,900.23 × 1,262.57
4. Step 4: Simplify right side
   2,102.18x = 3,661,743.39
5. Step 5: Solve for x
   x = 3,661,743.39/2,102.18
6. Step 6: Final answer
   x = 1,741.88