Finding the Fourth Proportional to 2,102.17, 2,900.76 and 1,262.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.17 : 2,900.76 = 1,262.71 : x
2. Step 2: Convert to fraction form
   2,102.17/2,900.76 = 1,262.71/x
3. Step 3: Cross multiply
   2,102.17x = 2,900.76 × 1,262.71
4. Step 4: Simplify right side
   2,102.17x = 3,662,818.66
5. Step 5: Solve for x
   x = 3,662,818.66/2,102.17
6. Step 6: Final answer
   x = 1,742.40