Finding the Fourth Proportional to 1,869.31, 2,579.59 and 1,030.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,869.31 : 2,579.59 = 1,030.01 : x
2. Step 2: Convert to fraction form
   1,869.31/2,579.59 = 1,030.01/x
3. Step 3: Cross multiply
   1,869.31x = 2,579.59 × 1,030.01
4. Step 4: Simplify right side
   1,869.31x = 2,657,003.50
5. Step 5: Solve for x
   x = 2,657,003.50/1,869.31
6. Step 6: Final answer
   x = 1,421.38