Finding the Fourth Proportional to 1,056.56, 1,458.08 and 703.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056.56 : 1,458.08 = 703.08 : x
2. Step 2: Convert to fraction form
   1,056.56/1,458.08 = 703.08/x
3. Step 3: Cross multiply
   1,056.56x = 1,458.08 × 703.08
4. Step 4: Simplify right side
   1,056.56x = 1,025,146.89
5. Step 5: Solve for x
   x = 1,025,146.89/1,056.56
6. Step 6: Final answer
   x = 970.27