Finding the Fourth Proportional to 2,307.59, 3,179.91 and 1,642.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.59 : 3,179.91 = 1,642.58 : x
2. Step 2: Convert to fraction form
   2,307.59/3,179.91 = 1,642.58/x
3. Step 3: Cross multiply
   2,307.59x = 3,179.91 × 1,642.58
4. Step 4: Simplify right side
   2,307.59x = 5,223,256.57
5. Step 5: Solve for x
   x = 5,223,256.57/2,307.59
6. Step 6: Final answer
   x = 2,263.51