Finding the Fourth Proportional to 2,890.76, 4,337.45 and 1,225.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,890.76 : 4,337.45 = 1,225.34 : x
2. Step 2: Convert to fraction form
   2,890.76/4,337.45 = 1,225.34/x
3. Step 3: Cross multiply
   2,890.76x = 4,337.45 × 1,225.34
4. Step 4: Simplify right side
   2,890.76x = 5,314,823.17
5. Step 5: Solve for x
   x = 5,314,823.17/2,890.76
6. Step 6: Final answer
   x = 1,838.56