Finding the Fourth Proportional to 2,875,061.20, 3,968,859.72 and 1,856,962.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,875,061.20 : 3,968,859.72 = 1,856,962.48 : x
2. Step 2: Convert to fraction form
   2,875,061.20/3,968,859.72 = 1,856,962.48/x
3. Step 3: Cross multiply
   2,875,061.20x = 3,968,859.72 × 1,856,962.48
4. Step 4: Simplify right side
   2,875,061.20x = 7,370,023,588,423.31
5. Step 5: Solve for x
   x = 7,370,023,588,423.31/2,875,061.20
6. Step 6: Final answer
   x = 2,563,431.90