Finding the Fourth Proportional to 2,611.76, 3,604.29 and 1,432.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,611.76 : 3,604.29 = 1,432.83 : x
2. Step 2: Convert to fraction form
   2,611.76/3,604.29 = 1,432.83/x
3. Step 3: Cross multiply
   2,611.76x = 3,604.29 × 1,432.83
4. Step 4: Simplify right side
   2,611.76x = 5,164,322.71
5. Step 5: Solve for x
   x = 5,164,322.71/2,611.76
6. Step 6: Final answer
   x = 1,977.34