Finding the Fourth Proportional to 2,399,381.33, 3,311,152.80 and 1,311,665.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399,381.33 : 3,311,152.80 = 1,311,665.93 : x
2. Step 2: Convert to fraction form
   2,399,381.33/3,311,152.80 = 1,311,665.93/x
3. Step 3: Cross multiply
   2,399,381.33x = 3,311,152.80 × 1,311,665.93
4. Step 4: Simplify right side
   2,399,381.33x = 4,343,126,316,784.10
5. Step 5: Solve for x
   x = 4,343,126,316,784.10/2,399,381.33
6. Step 6: Final answer
   x = 1,810,102.57