Finding the Fourth Proportional to 1,580,353.50, 2,180,887.83 and 864,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,580,353.50 : 2,180,887.83 = 864,961.50 : x
2. Step 2: Convert to fraction form
   1,580,353.50/2,180,887.83 = 864,961.50/x
3. Step 3: Cross multiply
   1,580,353.50x = 2,180,887.83 × 864,961.50
4. Step 4: Simplify right side
   1,580,353.50x = 1,886,384,008,768.55
5. Step 5: Solve for x
   x = 1,886,384,008,768.55/1,580,353.50
6. Step 6: Final answer
   x = 1,193,646.87