Finding the Fourth Proportional to 1,587.84, 2,191.16 and 924.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587.84 : 2,191.16 = 924.69 : x
2. Step 2: Convert to fraction form
   1,587.84/2,191.16 = 924.69/x
3. Step 3: Cross multiply
   1,587.84x = 2,191.16 × 924.69
4. Step 4: Simplify right side
   1,587.84x = 2,026,139.12
5. Step 5: Solve for x
   x = 2,026,139.12/1,587.84
6. Step 6: Final answer
   x = 1,276.03