Finding the Fourth Proportional to 1,097.76, 1,642.80 and 900.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,097.76 : 1,642.80 = 900.33 : x
2. Step 2: Convert to fraction form
   1,097.76/1,642.80 = 900.33/x
3. Step 3: Cross multiply
   1,097.76x = 1,642.80 × 900.33
4. Step 4: Simplify right side
   1,097.76x = 1,479,054.28
5. Step 5: Solve for x
   x = 1,479,054.28/1,097.76
6. Step 6: Final answer
   x = 1,347.33