Finding the Fourth Proportional to 2,071.84, 2,859.06 and 1,140.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.84 : 2,859.06 = 1,140.34 : x
2. Step 2: Convert to fraction form
   2,071.84/2,859.06 = 1,140.34/x
3. Step 3: Cross multiply
   2,071.84x = 2,859.06 × 1,140.34
4. Step 4: Simplify right side
   2,071.84x = 3,260,300.48
5. Step 5: Solve for x
   x = 3,260,300.48/2,071.84
6. Step 6: Final answer
   x = 1,573.63