Finding the Fourth Proportional to 1,253,978.37, 1,731,207.47 and 825,504.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,978.37 : 1,731,207.47 = 825,504.05 : x
2. Step 2: Convert to fraction form
   1,253,978.37/1,731,207.47 = 825,504.05/x
3. Step 3: Cross multiply
   1,253,978.37x = 1,731,207.47 × 825,504.05
4. Step 4: Simplify right side
   1,253,978.37x = 1,429,118,778,075.75
5. Step 5: Solve for x
   x = 1,429,118,778,075.75/1,253,978.37
6. Step 6: Final answer
   x = 1,139,667.81