Finding the Fourth Proportional to 2,153,437.28, 2,971,875.82 and 1,186,567.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,437.28 : 2,971,875.82 = 1,186,567.31 : x
2. Step 2: Convert to fraction form
   2,153,437.28/2,971,875.82 = 1,186,567.31/x
3. Step 3: Cross multiply
   2,153,437.28x = 2,971,875.82 × 1,186,567.31
4. Step 4: Simplify right side
   2,153,437.28x = 3,526,330,701,854.72
5. Step 5: Solve for x
   x = 3,526,330,701,854.72/2,153,437.28
6. Step 6: Final answer
   x = 1,637,535.83