Finding the Fourth Proportional to 1,404.06, 2,106.08 and 526.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.06 : 2,106.08 = 526.52 : x
2. Step 2: Convert to fraction form
   1,404.06/2,106.08 = 526.52/x
3. Step 3: Cross multiply
   1,404.06x = 2,106.08 × 526.52
4. Step 4: Simplify right side
   1,404.06x = 1,108,897.85
5. Step 5: Solve for x
   x = 1,108,897.85/1,404.06
6. Step 6: Final answer
   x = 789.78