Finding the Fourth Proportional to 2,037,978.99, 3,056,966.55 and 521,659.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,037,978.99 : 3,056,966.55 = 521,659.53 : x
2. Step 2: Convert to fraction form
   2,037,978.99/3,056,966.55 = 521,659.53/x
3. Step 3: Cross multiply
   2,037,978.99x = 3,056,966.55 × 521,659.53
4. Step 4: Simplify right side
   2,037,978.99x = 1,594,695,733,698.72
5. Step 5: Solve for x
   x = 1,594,695,733,698.72/2,037,978.99
6. Step 6: Final answer
   x = 782,488.80