Finding the Fourth Proportional to 1,674.71, 2,507.42 and 1,262.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.71 : 2,507.42 = 1,262.60 : x
2. Step 2: Convert to fraction form
   1,674.71/2,507.42 = 1,262.60/x
3. Step 3: Cross multiply
   1,674.71x = 2,507.42 × 1,262.60
4. Step 4: Simplify right side
   1,674.71x = 3,165,868.49
5. Step 5: Solve for x
   x = 3,165,868.49/1,674.71
6. Step 6: Final answer
   x = 1,890.40