Finding the Fourth Proportional to 1,623.30, 2,429.55 and 1,137.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,623.30 : 2,429.55 = 1,137.30 : x
2. Step 2: Convert to fraction form
   1,623.30/2,429.55 = 1,137.30/x
3. Step 3: Cross multiply
   1,623.30x = 2,429.55 × 1,137.30
4. Step 4: Simplify right side
   1,623.30x = 2,763,127.22
5. Step 5: Solve for x
   x = 2,763,127.22/1,623.30
6. Step 6: Final answer
   x = 1,702.17