Finding the Fourth Proportional to 1,036.86, 1,558.17 and 626.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.86 : 1,558.17 = 626.10 : x
2. Step 2: Convert to fraction form
   1,036.86/1,558.17 = 626.10/x
3. Step 3: Cross multiply
   1,036.86x = 1,558.17 × 626.10
4. Step 4: Simplify right side
   1,036.86x = 975,570.24
5. Step 5: Solve for x
   x = 975,570.24/1,036.86
6. Step 6: Final answer
   x = 940.89