Finding the Fourth Proportional to 1,381,443.40, 1,905,886.20 and 837,186.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381,443.40 : 1,905,886.20 = 837,186.56 : x
2. Step 2: Convert to fraction form
   1,381,443.40/1,905,886.20 = 837,186.56/x
3. Step 3: Cross multiply
   1,381,443.40x = 1,905,886.20 × 837,186.56
4. Step 4: Simplify right side
   1,381,443.40x = 1,595,582,311,529.47
5. Step 5: Solve for x
   x = 1,595,582,311,529.47/1,381,443.40
6. Step 6: Final answer
   x = 1,155,010.99