Finding the Fourth Proportional to 1,666,649.51, 2,499,977.46 and 642,462.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,666,649.51 : 2,499,977.46 = 642,462.08 : x
2. Step 2: Convert to fraction form
   1,666,649.51/2,499,977.46 = 642,462.08/x
3. Step 3: Cross multiply
   1,666,649.51x = 2,499,977.46 × 642,462.08
4. Step 4: Simplify right side
   1,666,649.51x = 1,606,140,706,404.83
5. Step 5: Solve for x
   x = 1,606,140,706,404.83/1,666,649.51
6. Step 6: Final answer
   x = 963,694.35