Finding the Fourth Proportional to 1,571.60, 2,358.37 and 841.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.60 : 2,358.37 = 841.69 : x
2. Step 2: Convert to fraction form
   1,571.60/2,358.37 = 841.69/x
3. Step 3: Cross multiply
   1,571.60x = 2,358.37 × 841.69
4. Step 4: Simplify right side
   1,571.60x = 1,985,015.71
5. Step 5: Solve for x
   x = 1,985,015.71/1,571.60
6. Step 6: Final answer
   x = 1,263.05