Finding the Fourth Proportional to 1,749.42, 2,620.71 and 1,054.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,749.42 : 2,620.71 = 1,054.04 : x
2. Step 2: Convert to fraction form
   1,749.42/2,620.71 = 1,054.04/x
3. Step 3: Cross multiply
   1,749.42x = 2,620.71 × 1,054.04
4. Step 4: Simplify right side
   1,749.42x = 2,762,320.06
5. Step 5: Solve for x
   x = 2,762,320.06/1,749.42
6. Step 6: Final answer
   x = 1,578.99