Finding the Fourth Proportional to 1,588.31, 2,191.83 and 889.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.31 : 2,191.83 = 889.82 : x
2. Step 2: Convert to fraction form
   1,588.31/2,191.83 = 889.82/x
3. Step 3: Cross multiply
   1,588.31x = 2,191.83 × 889.82
4. Step 4: Simplify right side
   1,588.31x = 1,950,334.17
5. Step 5: Solve for x
   x = 1,950,334.17/1,588.31
6. Step 6: Final answer
   x = 1,227.93