Finding the Fourth Proportional to 3,654,008.72, 5,478,521.94 and 1,853,420.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,654,008.72 : 5,478,521.94 = 1,853,420.18 : x
2. Step 2: Convert to fraction form
   3,654,008.72/5,478,521.94 = 1,853,420.18/x
3. Step 3: Cross multiply
   3,654,008.72x = 5,478,521.94 × 1,853,420.18
4. Step 4: Simplify right side
   3,654,008.72x = 10,154,003,092,776.14
5. Step 5: Solve for x
   x = 10,154,003,092,776.14/3,654,008.72
6. Step 6: Final answer
   x = 2,778,866.68