Finding the Fourth Proportional to 1,384.80, 1,898.04 and 1,375.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.80 : 1,898.04 = 1,375.20 : x
2. Step 2: Convert to fraction form
   1,384.80/1,898.04 = 1,375.20/x
3. Step 3: Cross multiply
   1,384.80x = 1,898.04 × 1,375.20
4. Step 4: Simplify right side
   1,384.80x = 2,610,184.61
5. Step 5: Solve for x
   x = 2,610,184.61/1,384.80
6. Step 6: Final answer
   x = 1,884.88