Finding the Fourth Proportional to 1,588.43, 2,191.30 and 924.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.43 : 2,191.30 = 924.89 : x
2. Step 2: Convert to fraction form
   1,588.43/2,191.30 = 924.89/x
3. Step 3: Cross multiply
   1,588.43x = 2,191.30 × 924.89
4. Step 4: Simplify right side
   1,588.43x = 2,026,698.19
5. Step 5: Solve for x
   x = 2,026,698.19/1,588.43
6. Step 6: Final answer
   x = 1,275.91