Finding the Fourth Proportional to 2,333.47, 3,498.81 and 870.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.47 : 3,498.81 = 870.91 : x
2. Step 2: Convert to fraction form
   2,333.47/3,498.81 = 870.91/x
3. Step 3: Cross multiply
   2,333.47x = 3,498.81 × 870.91
4. Step 4: Simplify right side
   2,333.47x = 3,047,148.62
5. Step 5: Solve for x
   x = 3,047,148.62/2,333.47
6. Step 6: Final answer
   x = 1,305.84