Finding the Fourth Proportional to 1,384.17, 1,907.91 and 1,084.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,384.17 : 1,907.91 = 1,084.92 : x
2. Step 2: Convert to fraction form
   1,384.17/1,907.91 = 1,084.92/x
3. Step 3: Cross multiply
   1,384.17x = 1,907.91 × 1,084.92
4. Step 4: Simplify right side
   1,384.17x = 2,069,929.72
5. Step 5: Solve for x
   x = 2,069,929.72/1,384.17
6. Step 6: Final answer
   x = 1,495.43