Finding the Fourth Proportional to 1,554.06, 2,330.15 and 1,054.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554.06 : 2,330.15 = 1,054.34 : x
2. Step 2: Convert to fraction form
   1,554.06/2,330.15 = 1,054.34/x
3. Step 3: Cross multiply
   1,554.06x = 2,330.15 × 1,054.34
4. Step 4: Simplify right side
   1,554.06x = 2,456,778.81
5. Step 5: Solve for x
   x = 2,456,778.81/1,554.06
6. Step 6: Final answer
   x = 1,580.88