Finding the Fourth Proportional to 2,142,471.57, 3,213,726.18 and 545,036.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,471.57 : 3,213,726.18 = 545,036.34 : x
2. Step 2: Convert to fraction form
   2,142,471.57/3,213,726.18 = 545,036.34/x
3. Step 3: Cross multiply
   2,142,471.57x = 3,213,726.18 × 545,036.34
4. Step 4: Simplify right side
   2,142,471.57x = 1,751,597,567,982.80
5. Step 5: Solve for x
   x = 1,751,597,567,982.80/2,142,471.57
6. Step 6: Final answer
   x = 817,559.31