Finding the Fourth Proportional to 1,774.58, 2,661.32 and 1,642.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.58 : 2,661.32 = 1,642.82 : x
2. Step 2: Convert to fraction form
   1,774.58/2,661.32 = 1,642.82/x
3. Step 3: Cross multiply
   1,774.58x = 2,661.32 × 1,642.82
4. Step 4: Simplify right side
   1,774.58x = 4,372,069.72
5. Step 5: Solve for x
   x = 4,372,069.72/1,774.58
6. Step 6: Final answer
   x = 2,463.72