Finding the Fourth Proportional to 1,733.42, 2,390.64 and 1,355.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,733.42 : 2,390.64 = 1,355.42 : x
2. Step 2: Convert to fraction form
   1,733.42/2,390.64 = 1,355.42/x
3. Step 3: Cross multiply
   1,733.42x = 2,390.64 × 1,355.42
4. Step 4: Simplify right side
   1,733.42x = 3,240,321.27
5. Step 5: Solve for x
   x = 3,240,321.27/1,733.42
6. Step 6: Final answer
   x = 1,869.32