Finding the Fourth Proportional to 1,827.30, 2,522.10 and 1,238.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,827.30 : 2,522.10 = 1,238.40 : x
2. Step 2: Convert to fraction form
   1,827.30/2,522.10 = 1,238.40/x
3. Step 3: Cross multiply
   1,827.30x = 2,522.10 × 1,238.40
4. Step 4: Simplify right side
   1,827.30x = 3,123,368.64
5. Step 5: Solve for x
   x = 3,123,368.64/1,827.30
6. Step 6: Final answer
   x = 1,709.28