Finding the Fourth Proportional to 1,868,470.54, 2,578,489.33 and 1,009,030.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868,470.54 : 2,578,489.33 = 1,009,030.72 : x
2. Step 2: Convert to fraction form
   1,868,470.54/2,578,489.33 = 1,009,030.72/x
3. Step 3: Cross multiply
   1,868,470.54x = 2,578,489.33 × 1,009,030.72
4. Step 4: Simplify right side
   1,868,470.54x = 2,601,774,940,082.12
5. Step 5: Solve for x
   x = 2,601,774,940,082.12/1,868,470.54
6. Step 6: Final answer
   x = 1,392,462.38