Finding the Fourth Proportional to 1,051.40, 1,451.85 and 659.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.40 : 1,451.85 = 659.10 : x
2. Step 2: Convert to fraction form
   1,051.40/1,451.85 = 659.10/x
3. Step 3: Cross multiply
   1,051.40x = 1,451.85 × 659.10
4. Step 4: Simplify right side
   1,051.40x = 956,914.34
5. Step 5: Solve for x
   x = 956,914.34/1,051.40
6. Step 6: Final answer
   x = 910.13