Finding the Fourth Proportional to 2,333.56, 3,491.82 and 1,405.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.56 : 3,491.82 = 1,405.72 : x
2. Step 2: Convert to fraction form
   2,333.56/3,491.82 = 1,405.72/x
3. Step 3: Cross multiply
   2,333.56x = 3,491.82 × 1,405.72
4. Step 4: Simplify right side
   2,333.56x = 4,908,521.21
5. Step 5: Solve for x
   x = 4,908,521.21/2,333.56
6. Step 6: Final answer
   x = 2,103.45