Finding the Fourth Proportional to 2,611.98, 3,604.53 and 1,433.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.98 : 3,604.53 = 1,433.07 : x
2. Step 2: Convert to fraction form
   2,611.98/3,604.53 = 1,433.07/x
3. Step 3: Cross multiply
   2,611.98x = 3,604.53 × 1,433.07
4. Step 4: Simplify right side
   2,611.98x = 5,165,543.81
5. Step 5: Solve for x
   x = 5,165,543.81/2,611.98
6. Step 6: Final answer
   x = 1,977.64