Finding the Fourth Proportional to 1,507.10, 2,079.50 and 843.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.10 : 2,079.50 = 843.93 : x
2. Step 2: Convert to fraction form
   1,507.10/2,079.50 = 843.93/x
3. Step 3: Cross multiply
   1,507.10x = 2,079.50 × 843.93
4. Step 4: Simplify right side
   1,507.10x = 1,754,948.22
5. Step 5: Solve for x
   x = 1,754,948.22/1,507.10
6. Step 6: Final answer
   x = 1,164.46