Finding the Fourth Proportional to 2,661.01, 3,988.52 and 904.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.01 : 3,988.52 = 904.37 : x
2. Step 2: Convert to fraction form
   2,661.01/3,988.52 = 904.37/x
3. Step 3: Cross multiply
   2,661.01x = 3,988.52 × 904.37
4. Step 4: Simplify right side
   2,661.01x = 3,607,104.28
5. Step 5: Solve for x
   x = 3,607,104.28/2,661.01
6. Step 6: Final answer
   x = 1,355.54