Finding the Fourth Proportional to 2,523.84, 3,787.80 and 1,225.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,523.84 : 3,787.80 = 1,225.30 : x
2. Step 2: Convert to fraction form
   2,523.84/3,787.80 = 1,225.30/x
3. Step 3: Cross multiply
   2,523.84x = 3,787.80 × 1,225.30
4. Step 4: Simplify right side
   2,523.84x = 4,641,191.34
5. Step 5: Solve for x
   x = 4,641,191.34/2,523.84
6. Step 6: Final answer
   x = 1,838.94