Finding the Fourth Proportional to 1,365.21, 1,884.77 and 900.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.21 : 1,884.77 = 900.27 : x
2. Step 2: Convert to fraction form
   1,365.21/1,884.77 = 900.27/x
3. Step 3: Cross multiply
   1,365.21x = 1,884.77 × 900.27
4. Step 4: Simplify right side
   1,365.21x = 1,696,801.89
5. Step 5: Solve for x
   x = 1,696,801.89/1,365.21
6. Step 6: Final answer
   x = 1,242.89