Finding the Fourth Proportional to 1,435.14, 1,980.54 and 910.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.14 : 1,980.54 = 910.62 : x
2. Step 2: Convert to fraction form
   1,435.14/1,980.54 = 910.62/x
3. Step 3: Cross multiply
   1,435.14x = 1,980.54 × 910.62
4. Step 4: Simplify right side
   1,435.14x = 1,803,519.33
5. Step 5: Solve for x
   x = 1,803,519.33/1,435.14
6. Step 6: Final answer
   x = 1,256.69