Finding the Fourth Proportional to 1,499,638.50, 2,069,501.13 and 820,575

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,638.50 : 2,069,501.13 = 820,575 : x
2. Step 2: Convert to fraction form
   1,499,638.50/2,069,501.13 = 820,575/x
3. Step 3: Cross multiply
   1,499,638.50x = 2,069,501.13 × 820,575
4. Step 4: Simplify right side
   1,499,638.50x = 1,698,180,889,749.75
5. Step 5: Solve for x
   x = 1,698,180,889,749.75/1,499,638.50
6. Step 6: Final answer
   x = 1,132,393.50