Finding the Fourth Proportional to 2,606.72, 3,597.48 and 1,427.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.72 : 3,597.48 = 1,427.90 : x
2. Step 2: Convert to fraction form
   2,606.72/3,597.48 = 1,427.90/x
3. Step 3: Cross multiply
   2,606.72x = 3,597.48 × 1,427.90
4. Step 4: Simplify right side
   2,606.72x = 5,136,823.70
5. Step 5: Solve for x
   x = 5,136,823.70/2,606.72
6. Step 6: Final answer
   x = 1,970.61