Finding the Fourth Proportional to 1,758.96, 2,638.47 and 526.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.96 : 2,638.47 = 526.10 : x
2. Step 2: Convert to fraction form
   1,758.96/2,638.47 = 526.10/x
3. Step 3: Cross multiply
   1,758.96x = 2,638.47 × 526.10
4. Step 4: Simplify right side
   1,758.96x = 1,388,085.87
5. Step 5: Solve for x
   x = 1,388,085.87/1,758.96
6. Step 6: Final answer
   x = 789.15