Finding the Fourth Proportional to 1,062.56, 1,467.58 and 707.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.56 : 1,467.58 = 707.88 : x
2. Step 2: Convert to fraction form
   1,062.56/1,467.58 = 707.88/x
3. Step 3: Cross multiply
   1,062.56x = 1,467.58 × 707.88
4. Step 4: Simplify right side
   1,062.56x = 1,038,870.53
5. Step 5: Solve for x
   x = 1,038,870.53/1,062.56
6. Step 6: Final answer
   x = 977.71