Finding the Fourth Proportional to 2,648,345.21, 3,972,554.72 and 755,086.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648,345.21 : 3,972,554.72 = 755,086.65 : x
2. Step 2: Convert to fraction form
   2,648,345.21/3,972,554.72 = 755,086.65/x
3. Step 3: Cross multiply
   2,648,345.21x = 3,972,554.72 × 755,086.65
4. Step 4: Simplify right side
   2,648,345.21x = 2,999,623,037,354.20
5. Step 5: Solve for x
   x = 2,999,623,037,354.20/2,648,345.21
6. Step 6: Final answer
   x = 1,132,640.50