Finding the Fourth Proportional to 1,873,123.21, 2,584,914.62 and 1,013,689.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,873,123.21 : 2,584,914.62 = 1,013,689.72 : x
2. Step 2: Convert to fraction form
   1,873,123.21/2,584,914.62 = 1,013,689.72/x
3. Step 3: Cross multiply
   1,873,123.21x = 2,584,914.62 × 1,013,689.72
4. Step 4: Simplify right side
   1,873,123.21x = 2,620,301,377,371.71
5. Step 5: Solve for x
   x = 2,620,301,377,371.71/1,873,123.21
6. Step 6: Final answer
   x = 1,398,894.30