Finding the Fourth Proportional to 2,151.19, 3,225.48 and 1,054.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.19 : 3,225.48 = 1,054.18 : x
2. Step 2: Convert to fraction form
   2,151.19/3,225.48 = 1,054.18/x
3. Step 3: Cross multiply
   2,151.19x = 3,225.48 × 1,054.18
4. Step 4: Simplify right side
   2,151.19x = 3,400,236.51
5. Step 5: Solve for x
   x = 3,400,236.51/2,151.19
6. Step 6: Final answer
   x = 1,580.63