Finding the Fourth Proportional to 1,554.23, 2,145.69 and 1,134.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.23 : 2,145.69 = 1,134.15 : x
2. Step 2: Convert to fraction form
   1,554.23/2,145.69 = 1,134.15/x
3. Step 3: Cross multiply
   1,554.23x = 2,145.69 × 1,134.15
4. Step 4: Simplify right side
   1,554.23x = 2,433,534.31
5. Step 5: Solve for x
   x = 2,433,534.31/1,554.23
6. Step 6: Final answer
   x = 1,565.75