Finding the Fourth Proportional to 1,375.08, 2,061.42 and 554.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.08 : 2,061.42 = 554.04 : x
2. Step 2: Convert to fraction form
   1,375.08/2,061.42 = 554.04/x
3. Step 3: Cross multiply
   1,375.08x = 2,061.42 × 554.04
4. Step 4: Simplify right side
   1,375.08x = 1,142,109.14
5. Step 5: Solve for x
   x = 1,142,109.14/1,375.08
6. Step 6: Final answer
   x = 830.58