Finding the Fourth Proportional to 1,061,019.84, 1,590,110 and 520,449.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,019.84 : 1,590,110 = 520,449.60 : x
2. Step 2: Convert to fraction form
   1,061,019.84/1,590,110 = 520,449.60/x
3. Step 3: Cross multiply
   1,061,019.84x = 1,590,110 × 520,449.60
4. Step 4: Simplify right side
   1,061,019.84x = 827,572,113,456
5. Step 5: Solve for x
   x = 827,572,113,456/1,061,019.84
6. Step 6: Final answer
   x = 779,977.98