Finding the Fourth Proportional to 1,352.42, 1,866.91 and 910.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,352.42 : 1,866.91 = 910.58 : x
2. Step 2: Convert to fraction form
   1,352.42/1,866.91 = 910.58/x
3. Step 3: Cross multiply
   1,352.42x = 1,866.91 × 910.58
4. Step 4: Simplify right side
   1,352.42x = 1,699,970.91
5. Step 5: Solve for x
   x = 1,699,970.91/1,352.42
6. Step 6: Final answer
   x = 1,256.98