Finding the Fourth Proportional to 1,357.77, 1,874.33 and 910.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.77 : 1,874.33 = 910.35 : x
2. Step 2: Convert to fraction form
   1,357.77/1,874.33 = 910.35/x
3. Step 3: Cross multiply
   1,357.77x = 1,874.33 × 910.35
4. Step 4: Simplify right side
   1,357.77x = 1,706,296.32
5. Step 5: Solve for x
   x = 1,706,296.32/1,357.77
6. Step 6: Final answer
   x = 1,256.69