Finding the Fourth Proportional to 1,587,193.72, 2,188,835.35 and 1,224,042.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587,193.72 : 2,188,835.35 = 1,224,042.37 : x
2. Step 2: Convert to fraction form
   1,587,193.72/2,188,835.35 = 1,224,042.37/x
3. Step 3: Cross multiply
   1,587,193.72x = 2,188,835.35 × 1,224,042.37
4. Step 4: Simplify right side
   1,587,193.72x = 2,679,227,200,821.59
5. Step 5: Solve for x
   x = 2,679,227,200,821.59/1,587,193.72
6. Step 6: Final answer
   x = 1,688,027.85