Finding the Fourth Proportional to 1,554.62, 2,329.18 and 1,385.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.62 : 2,329.18 = 1,385.12 : x
2. Step 2: Convert to fraction form
   1,554.62/2,329.18 = 1,385.12/x
3. Step 3: Cross multiply
   1,554.62x = 2,329.18 × 1,385.12
4. Step 4: Simplify right side
   1,554.62x = 3,226,196.16
5. Step 5: Solve for x
   x = 3,226,196.16/1,554.62
6. Step 6: Final answer
   x = 2,075.24