Finding the Fourth Proportional to 1,058.71, 1,588.34 and 943.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058.71 : 1,588.34 = 943.96 : x
2. Step 2: Convert to fraction form
   1,058.71/1,588.34 = 943.96/x
3. Step 3: Cross multiply
   1,058.71x = 1,588.34 × 943.96
4. Step 4: Simplify right side
   1,058.71x = 1,499,329.43
5. Step 5: Solve for x
   x = 1,499,329.43/1,058.71
6. Step 6: Final answer
   x = 1,416.19