Finding the Fourth Proportional to 1,549,462.20, 2,138,255.71 and 861,112.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,549,462.20 : 2,138,255.71 = 861,112.45 : x
2. Step 2: Convert to fraction form
   1,549,462.20/2,138,255.71 = 861,112.45/x
3. Step 3: Cross multiply
   1,549,462.20x = 2,138,255.71 × 861,112.45
4. Step 4: Simplify right side
   1,549,462.20x = 1,841,278,613,164.59
5. Step 5: Solve for x
   x = 1,841,278,613,164.59/1,549,462.20
6. Step 6: Final answer
   x = 1,188,334.00