Finding the Fourth Proportional to 1,554.59, 2,144.81 and 1,056.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.59 : 2,144.81 = 1,056.38 : x
2. Step 2: Convert to fraction form
   1,554.59/2,144.81 = 1,056.38/x
3. Step 3: Cross multiply
   1,554.59x = 2,144.81 × 1,056.38
4. Step 4: Simplify right side
   1,554.59x = 2,265,726.30
5. Step 5: Solve for x
   x = 2,265,726.30/1,554.59
6. Step 6: Final answer
   x = 1,457.44