Finding the Fourth Proportional to 1,530.17, 2,290.77 and 1,384.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.17 : 2,290.77 = 1,384.27 : x
2. Step 2: Convert to fraction form
   1,530.17/2,290.77 = 1,384.27/x
3. Step 3: Cross multiply
   1,530.17x = 2,290.77 × 1,384.27
4. Step 4: Simplify right side
   1,530.17x = 3,171,044.19
5. Step 5: Solve for x
   x = 3,171,044.19/1,530.17
6. Step 6: Final answer
   x = 2,072.35