Finding the Fourth Proportional to 2,315.01, 3,194.59 and 1,266.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,315.01 : 3,194.59 = 1,266.87 : x
2. Step 2: Convert to fraction form
   2,315.01/3,194.59 = 1,266.87/x
3. Step 3: Cross multiply
   2,315.01x = 3,194.59 × 1,266.87
4. Step 4: Simplify right side
   2,315.01x = 4,047,131.82
5. Step 5: Solve for x
   x = 4,047,131.82/2,315.01
6. Step 6: Final answer
   x = 1,748.21