Finding the Fourth Proportional to 2,052.34, 2,828.86 and 1,388.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,052.34 : 2,828.86 = 1,388.95 : x
2. Step 2: Convert to fraction form
   2,052.34/2,828.86 = 1,388.95/x
3. Step 3: Cross multiply
   2,052.34x = 2,828.86 × 1,388.95
4. Step 4: Simplify right side
   2,052.34x = 3,929,134.55
5. Step 5: Solve for x
   x = 3,929,134.55/2,052.34
6. Step 6: Final answer
   x = 1,914.47