Finding the Fourth Proportional to 1,164.80, 1,748.55 and 703.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,164.80 : 1,748.55 = 703.10 : x
2. Step 2: Convert to fraction form
   1,164.80/1,748.55 = 703.10/x
3. Step 3: Cross multiply
   1,164.80x = 1,748.55 × 703.10
4. Step 4: Simplify right side
   1,164.80x = 1,229,405.51
5. Step 5: Solve for x
   x = 1,229,405.51/1,164.80
6. Step 6: Final answer
   x = 1,055.46