Finding the Fourth Proportional to 1,887.17, 2,604.15 and 1,090.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,887.17 : 2,604.15 = 1,090.22 : x
2. Step 2: Convert to fraction form
   1,887.17/2,604.15 = 1,090.22/x
3. Step 3: Cross multiply
   1,887.17x = 2,604.15 × 1,090.22
4. Step 4: Simplify right side
   1,887.17x = 2,839,083.39
5. Step 5: Solve for x
   x = 2,839,083.39/1,887.17
6. Step 6: Final answer
   x = 1,504.42