Finding the Fourth Proportional to 2,142,453.60, 3,213,698.58 and 545,018.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,453.60 : 3,213,698.58 = 545,018.04 : x
2. Step 2: Convert to fraction form
   2,142,453.60/3,213,698.58 = 545,018.04/x
3. Step 3: Cross multiply
   2,142,453.60x = 3,213,698.58 × 545,018.04
4. Step 4: Simplify right side
   2,142,453.60x = 1,751,523,701,222.38
5. Step 5: Solve for x
   x = 1,751,523,701,222.38/2,142,453.60
6. Step 6: Final answer
   x = 817,531.68