Finding the Fourth Proportional to 1,538,471.08, 2,298,112.78 and 1,139,890.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,538,471.08 : 2,298,112.78 = 1,139,890.33 : x
2. Step 2: Convert to fraction form
   1,538,471.08/2,298,112.78 = 1,139,890.33/x
3. Step 3: Cross multiply
   1,538,471.08x = 2,298,112.78 × 1,139,890.33
4. Step 4: Simplify right side
   1,538,471.08x = 2,619,596,535,171.42
5. Step 5: Solve for x
   x = 2,619,596,535,171.42/1,538,471.08
6. Step 6: Final answer
   x = 1,702,727.19