Finding the Fourth Proportional to 1,059.84, 1,587.04 and 693.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.84 : 1,587.04 = 693.56 : x
2. Step 2: Convert to fraction form
   1,059.84/1,587.04 = 693.56/x
3. Step 3: Cross multiply
   1,059.84x = 1,587.04 × 693.56
4. Step 4: Simplify right side
   1,059.84x = 1,100,707.46
5. Step 5: Solve for x
   x = 1,100,707.46/1,059.84
6. Step 6: Final answer
   x = 1,038.56